Installing `jupyter-collaboration` breaks notebook editor

[nwalters512]

Description

When jupyterlab-collaboration is installed into a vanilla quay.io/jupyter/minimal-notebook Docker image, it breaks the notebook editor.

Reproduce

Create the following Dockerfile:

FROM quay.io/jupyter/minimal-notebook:2025-04-04
RUN pip3 install jupyter-collaboration==4.0.0

Build an image from it:

docker build -t jupyterlab-test .

Run the image:

docker run --rm -it -p 8888:8888 jupyterlab-test

Look for output like the following:

[I 2025-04-08 21:51:46.934 ServerApp] Jupyter Server 2.15.0 is running at:
[I 2025-04-08 21:51:46.934 ServerApp] http://localhost:8888/lab?token=ac3e46008cd908e1b88eb9d7a86d4cbc11ba4d803dc7b40c

Open that URL in your browser.

Expected behavior

Observe that there is no option to open a notebook editor on the Launcher page:

Open your browser devtools. Observe a bunch of warnings and errors like the following:

Context

• Operating System and version: macOS Sequoia 15.4
• Browser and version: Chrome 135
• JupyterLab version: 4.3.6

Troubleshoot Output

$PATH:
	/opt/conda/bin
	/opt/conda/condabin
	/opt/conda/bin
	/usr/local/sbin
	/usr/local/bin
	/usr/sbin
	/usr/bin
	/sbin
	/bin
sys.path:

/opt/conda/bin

/opt/conda/lib/python312.zip

/opt/conda/lib/python3.12

/opt/conda/lib/python3.12/lib-dynload

/opt/conda/lib/python3.12/site-packages
sys.executable:

/opt/conda/bin/python3.12
sys.version:

3.12.9 | packaged by conda-forge | (main, Mar  4 2025, 22:38:05) [GCC 13.3.0]
platform.platform():

Linux-6.10.14-linuxkit-aarch64-with-glibc2.39
which -a jupyter:

/opt/conda/bin/jupyter

/opt/conda/bin/jupyter
pip list:

Package                   Version

------------------------- --------------

alembic                   1.15.2

annotated-types           0.7.0

anyio                     4.9.0

archspec                  0.2.5

argon2-cffi               23.1.0

argon2-cffi-bindings      21.2.0

arrow                     1.3.0

asttokens                 3.0.0

async_generator           1.10

async-lru                 2.0.5

attrs                     25.3.0

babel                     2.17.0

beautifulsoup4            4.13.3

bleach                    6.2.0

blinker                   1.9.0

boltons                   24.0.0

Brotli                    1.1.0

cached-property           1.5.2

certifi                   2025.1.31

certipy                   0.2.2

cffi                      1.17.1

charset-normalizer        3.4.1

colorama                  0.4.6

comm                      0.2.2

conda                     25.3.1

conda-libmamba-solver     25.3.0

conda-package-handling    2.4.0

conda_package_streaming   0.11.0

cryptography              44.0.2

debugpy                   1.8.13

decorator                 5.2.1

defusedxml                0.7.1

distro                    1.9.0

exceptiongroup            1.2.2

executing                 2.1.0

fastjsonschema            2.21.1

fqdn                      1.5.1

frozendict                2.4.6

greenlet                  3.1.1

h11                       0.14.0

h2                        4.2.0

hpack                     4.1.0

httpcore                  1.0.7

httpx                     0.28.1

hyperframe                6.1.0

idna                      3.10

importlib_metadata        8.6.1

importlib_resources       6.5.2

ipykernel                 6.29.5

ipython                   9.0.2

ipython_genutils          0.2.0

ipython_pygments_lexers   1.1.1

isoduration               20.11.0

jedi                      0.19.2

Jinja2                    3.1.6

json5                     0.12.0

jsonpatch                 1.33

jsonpointer               3.0.0

jsonschema                4.23.0

jsonschema-specifications 2024.10.1

jupyter_client            8.6.3

jupyter-collaboration     4.0.0

jupyter-collaboration-ui  2.0.0

jupyter_core              5.7.2

jupyter-docprovider       2.0.0

jupyter-events            0.12.0

jupyter-lsp               2.2.5

jupyter_server            2.15.0

jupyter_server_fileid     0.9.3

jupyter_server_terminals  0.5.3

jupyter-server-ydoc       2.0.0

jupyter-ydoc              3.0.3

jupyterhub                5.2.1

jupyterlab                4.3.6

jupyterlab_pygments       0.3.0

jupyterlab_server         2.27.3

libmambapy                2.0.8

Mako                      1.3.9

MarkupSafe                3.0.2

matplotlib-inline         0.1.7

menuinst                  2.2.0

mistune                   3.1.3

nbclassic                 1.2.0

nbclient                  0.10.2

nbconvert                 7.16.6

nbformat                  5.10.4

nest_asyncio              1.6.0

notebook                  7.3.3

notebook_shim             0.2.4

oauthlib                  3.2.2

overrides                 7.7.0

packaging                 24.2

pamela                    1.2.0

pandocfilters             1.5.0

parso                     0.8.4

pexpect                   4.9.0

pickleshare               0.7.5

pip                       25.0.1

pkgutil_resolve_name      1.3.10

platformdirs              4.3.7

pluggy                    1.5.0

prometheus_client         0.21.1

prompt_toolkit            3.0.50

psutil                    7.0.0

ptyprocess                0.7.0

pure_eval                 0.2.3

pycosat                   0.6.6

pycparser                 2.22

pycrdt                    0.12.11

pycrdt-websocket          0.15.4

pydantic                  2.11.2

pydantic_core             2.33.1

Pygments                  2.19.1

PyJWT                     2.10.1

PySocks                   1.7.1

python-dateutil           2.9.0.post0

python-json-logger        2.0.7

pytz                      2025.2

PyYAML                    6.0.2

pyzmq                     26.3.0

referencing               0.36.2

requests                  2.32.3

rfc3339_validator         0.1.4

rfc3986-validator         0.1.1

rpds-py                   0.24.0

ruamel.yaml               0.18.10

ruamel.yaml.clib          0.2.8

Send2Trash                1.8.3

setuptools                75.8.2

six                       1.17.0

sniffio                   1.3.1

soupsieve                 2.5

SQLAlchemy                2.0.40

sqlite-anyio              0.2.3

stack_data                0.6.3

terminado                 0.18.1

tinycss2                  1.4.0

tomli                     2.2.1

tornado                   6.4.2

tqdm                      4.67.1

traitlets                 5.14.3

truststore                0.10.1

types-python-dateutil     2.9.0.20241206

typing_extensions         4.13.0

typing-inspection         0.4.0

typing_utils              0.1.0

uri-template              1.3.0

urllib3                   2.3.0

wcwidth                   0.2.13

webcolors                 24.11.1

webencodings              0.5.1

websocket-client          1.8.0

wheel                     0.45.1

zipp                      3.21.0

zstandard                 0.23.0
conda list:

# packages in environment at /opt/conda:

#

# Name                    Version                   Build  Channel

_openmp_mutex             4.5                       2_gnu    conda-forge

alembic                   1.15.2             pyhd8ed1ab_0    conda-forge

annotated-types           0.7.0              pyhd8ed1ab_1    conda-forge

anyio                     4.9.0              pyh29332c3_0    conda-forge

archspec                  0.2.5              pyhd8ed1ab_0    conda-forge

argon2-cffi               23.1.0             pyhd8ed1ab_1    conda-forge

argon2-cffi-bindings      21.2.0          py312hb2c0f52_5    conda-forge

arrow                     1.3.0              pyhd8ed1ab_1    conda-forge

asttokens                 3.0.0              pyhd8ed1ab_1    conda-forge

async-lru                 2.0.5              pyh29332c3_0    conda-forge

async_generator           1.10               pyhd8ed1ab_2    conda-forge

attrs                     25.3.0             pyh71513ae_0    conda-forge

babel                     2.17.0             pyhd8ed1ab_0    conda-forge

beautifulsoup4            4.13.3             pyha770c72_0    conda-forge

bleach                    6.2.0              pyh29332c3_4    conda-forge

bleach-with-css           6.2.0                h82add2a_4    conda-forge

blinker                   1.9.0              pyhff2d567_0    conda-forge

boltons                   24.0.0             pyhd8ed1ab_1    conda-forge

brotli-python             1.1.0           py312h6f74592_2    conda-forge

bzip2                     1.0.8                h68df207_7    conda-forge

c-ares                    1.34.4               h86ecc28_0    conda-forge

ca-certificates           2025.1.31            hcefe29a_0    conda-forge

cached-property           1.5.2                hd8ed1ab_1    conda-forge

cached_property           1.5.2              pyha770c72_1    conda-forge

certifi                   2025.1.31          pyhd8ed1ab_0    conda-forge

certipy                   0.2.2              pyhd8ed1ab_0    conda-forge

cffi                      1.17.1          py312hac81daf_0    conda-forge

charset-normalizer        3.4.1              pyhd8ed1ab_0    conda-forge

colorama                  0.4.6              pyhd8ed1ab_1    conda-forge

comm                      0.2.2              pyhd8ed1ab_1    conda-forge

conda                     25.3.1          py312h996f985_0    conda-forge

conda-libmamba-solver     25.3.0             pyhd8ed1ab_0    conda-forge

conda-package-handling    2.4.0              pyh7900ff3_2    conda-forge

conda-package-streaming   0.11.0             pyhd8ed1ab_1    conda-forge

cpp-expected              1.1.0                h4c384f3_0    conda-forge

cryptography              44.0.2          py312he723553_0    conda-forge

debugpy                   1.8.13          py312h6f74592_0    conda-forge

decorator                 5.2.1              pyhd8ed1ab_0    conda-forge

defusedxml                0.7.1              pyhd8ed1ab_0    conda-forge

distro                    1.9.0              pyhd8ed1ab_1    conda-forge

exceptiongroup            1.2.2              pyhd8ed1ab_1    conda-forge

executing                 2.1.0              pyhd8ed1ab_1    conda-forge

fmt                       11.1.4               h97e1849_1    conda-forge

fqdn                      1.5.1              pyhd8ed1ab_1    conda-forge

frozendict                2.4.6           py312hb2c0f52_0    conda-forge

greenlet                  3.1.1           py312h6f74592_1    conda-forge

h11                       0.14.0             pyhd8ed1ab_1    conda-forge

h2                        4.2.0              pyhd8ed1ab_0    conda-forge

hpack                     4.1.0              pyhd8ed1ab_0    conda-forge

httpcore                  1.0.7              pyh29332c3_1    conda-forge

httpx                     0.28.1             pyhd8ed1ab_0    conda-forge

hyperframe                6.1.0              pyhd8ed1ab_0    conda-forge

icu                       75.1                 hf9b3779_0    conda-forge

idna                      3.10               pyhd8ed1ab_1    conda-forge

importlib-metadata        8.6.1              pyha770c72_0    conda-forge

importlib_resources       6.5.2              pyhd8ed1ab_0    conda-forge

ipykernel                 6.29.5             pyh3099207_0    conda-forge

ipython                   9.0.2              pyhfb0248b_0    conda-forge

ipython_genutils          0.2.0              pyhd8ed1ab_2    conda-forge

ipython_pygments_lexers   1.1.1              pyhd8ed1ab_0    conda-forge

isoduration               20.11.0            pyhd8ed1ab_1    conda-forge

jedi                      0.19.2             pyhd8ed1ab_1    conda-forge

jinja2                    3.1.6              pyhd8ed1ab_0    conda-forge

json5                     0.12.0             pyhd8ed1ab_0    conda-forge

jsonpatch                 1.33               pyhd8ed1ab_1    conda-forge

jsonpointer               3.0.0           py312h996f985_1    conda-forge

jsonschema                4.23.0             pyhd8ed1ab_1    conda-forge

jsonschema-specifications 2024.10.1          pyhd8ed1ab_1    conda-forge

jsonschema-with-format-nongpl 4.23.0               hd8ed1ab_1    conda-forge

jupyter-collaboration     4.0.0                    pypi_0    pypi

jupyter-collaboration-ui  2.0.0                    pypi_0    pypi

jupyter-docprovider       2.0.0                    pypi_0    pypi

jupyter-lsp               2.2.5              pyhd8ed1ab_1    conda-forge

jupyter-server-fileid     0.9.3                    pypi_0    pypi

jupyter-server-ydoc       2.0.0                    pypi_0    pypi

jupyter-ydoc              3.0.3                    pypi_0    pypi

jupyter_client            8.6.3              pyhd8ed1ab_1    conda-forge

jupyter_core              5.7.2              pyh31011fe_1    conda-forge

jupyter_events            0.12.0             pyh29332c3_0    conda-forge

jupyter_server            2.15.0             pyhd8ed1ab_0    conda-forge

jupyter_server_terminals  0.5.3              pyhd8ed1ab_1    conda-forge

jupyterhub-base           5.2.1              pyh31011fe_0    conda-forge

jupyterhub-singleuser     5.2.1              pyh31011fe_0    conda-forge

jupyterlab                4.3.6              pyhd8ed1ab_0    conda-forge

jupyterlab_pygments       0.3.0              pyhd8ed1ab_2    conda-forge

jupyterlab_server         2.27.3             pyhd8ed1ab_1    conda-forge

keyutils                  1.6.1                h4e544f5_0    conda-forge

krb5                      1.21.3               h50a48e9_0    conda-forge

ld_impl_linux-aarch64     2.43                 h80caac9_4    conda-forge

libarchive                3.7.7                h6223a6c_3    conda-forge

libcurl                   8.13.0               h6702fde_0    conda-forge

libedit                   3.1.20250104    pl5321h976ea20_0    conda-forge

libev                     4.33                 h31becfc_2    conda-forge

libexpat                  2.7.0                h5ad3122_0    conda-forge

libffi                    3.4.6                he21f813_1    conda-forge

libgcc                    14.2.0               he277a41_2    conda-forge

libgcc-ng                 14.2.0               he9431aa_2    conda-forge

libgomp                   14.2.0               he277a41_2    conda-forge

libiconv                  1.18                 hc99b53d_1    conda-forge

liblzma                   5.6.4                h86ecc28_0    conda-forge

libmamba                  2.0.8                hc3f49f9_2    conda-forge

libmambapy                2.0.8           py312h6af631f_2    conda-forge

libnghttp2                1.64.0               hc8609a4_0    conda-forge

libnsl                    2.0.1                h31becfc_0    conda-forge

libsodium                 1.0.20               h68df207_0    conda-forge

libsolv                   0.7.30               h62756fc_0    conda-forge

libsqlite                 3.49.1               h5eb1b54_2    conda-forge

libssh2                   1.11.1               ha41c0db_0    conda-forge

libstdcxx                 14.2.0               h3f4de04_2    conda-forge

libstdcxx-ng              14.2.0               hf1166c9_2    conda-forge

libuuid                   2.38.1               hb4cce97_0    conda-forge

libxcrypt                 4.4.36               h31becfc_1    conda-forge

libxml2                   2.13.7               h2e0c361_0    conda-forge

libzlib                   1.3.1                h86ecc28_2    conda-forge

lz4-c                     1.10.0               h5ad3122_1    conda-forge

lzo                       2.10              h31becfc_1001    conda-forge

mako                      1.3.9              pyhd8ed1ab_0    conda-forge

mamba                     2.0.8                h98989f4_2    conda-forge

markupsafe                3.0.2           py312h74ce7d3_1    conda-forge

matplotlib-inline         0.1.7              pyhd8ed1ab_1    conda-forge

menuinst                  2.2.0           py312h996f985_0    conda-forge

mistune                   3.1.3              pyh29332c3_0    conda-forge

nbclassic                 1.2.0              pyhd8ed1ab_0    conda-forge

nbclient                  0.10.2             pyhd8ed1ab_0    conda-forge

nbconvert-core            7.16.6             pyh29332c3_0    conda-forge

nbformat                  5.10.4             pyhd8ed1ab_1    conda-forge

ncurses                   6.5                  ha32ae93_3    conda-forge

nest-asyncio              1.6.0              pyhd8ed1ab_1    conda-forge

nlohmann_json             3.11.3               h0a1ffab_1    conda-forge

notebook                  7.3.3              pyhd8ed1ab_0    conda-forge

notebook-shim             0.2.4              pyhd8ed1ab_1    conda-forge

oauthlib                  3.2.2              pyhd8ed1ab_1    conda-forge

openssl                   3.4.1                hd08dc88_0    conda-forge

overrides                 7.7.0              pyhd8ed1ab_1    conda-forge

packaging                 24.2               pyhd8ed1ab_2    conda-forge

pamela                    1.2.0              pyhd8ed1ab_1    conda-forge

pandocfilters             1.5.0              pyhd8ed1ab_0    conda-forge

parso                     0.8.4              pyhd8ed1ab_1    conda-forge

pexpect                   4.9.0              pyhd8ed1ab_1    conda-forge

pickleshare               0.7.5           pyhd8ed1ab_1004    conda-forge

pip                       25.0.1             pyh8b19718_0    conda-forge

pkgutil-resolve-name      1.3.10             pyhd8ed1ab_2    conda-forge

platformdirs              4.3.7              pyh29332c3_0    conda-forge

pluggy                    1.5.0              pyhd8ed1ab_1    conda-forge

prometheus_client         0.21.1             pyhd8ed1ab_0    conda-forge

prompt-toolkit            3.0.50             pyha770c72_0    conda-forge

psutil                    7.0.0           py312hb2c0f52_0    conda-forge

ptyprocess                0.7.0              pyhd8ed1ab_1    conda-forge

pure_eval                 0.2.3              pyhd8ed1ab_1    conda-forge

pybind11-abi              4                    hd8ed1ab_3    conda-forge

pycosat                   0.6.6           py312hb2c0f52_2    conda-forge

pycparser                 2.22               pyh29332c3_1    conda-forge

pycrdt                    0.12.11                  pypi_0    pypi

pycrdt-websocket          0.15.4                   pypi_0    pypi

pydantic                  2.11.2             pyh3cfb1c2_0    conda-forge

pydantic-core             2.33.1          py312h8cbf658_0    conda-forge

pygments                  2.19.1             pyhd8ed1ab_0    conda-forge

pyjwt                     2.10.1             pyhd8ed1ab_0    conda-forge

pysocks                   1.7.1              pyha55dd90_7    conda-forge

python                    3.12.9          h1683364_1_cpython    conda-forge

python-dateutil           2.9.0.post0        pyhff2d567_1    conda-forge

python-fastjsonschema     2.21.1             pyhd8ed1ab_0    conda-forge

python-json-logger        2.0.7              pyhd8ed1ab_0    conda-forge

python_abi                3.12                    6_cp312    conda-forge

pytz                      2025.2             pyhd8ed1ab_0    conda-forge

pyyaml                    6.0.2           py312hcc812fe_2    conda-forge

pyzmq                     26.3.0          py312h2427ae1_0    conda-forge

readline                  8.2                  h8382b9d_2    conda-forge

referencing               0.36.2             pyh29332c3_0    conda-forge

reproc                    14.2.4.post0         h31becfc_1    conda-forge

reproc-cpp                14.2.4.post0         h2f0025b_1    conda-forge

requests                  2.32.3             pyhd8ed1ab_1    conda-forge

rfc3339-validator         0.1.4              pyhd8ed1ab_1    conda-forge

rfc3986-validator         0.1.1              pyh9f0ad1d_0    conda-forge

rpds-py                   0.24.0          py312he7a34ca_0    conda-forge

ruamel.yaml               0.18.10         py312hb2c0f52_0    conda-forge

ruamel.yaml.clib          0.2.8           py312hb2c0f52_1    conda-forge

send2trash                1.8.3              pyh0d859eb_1    conda-forge

setuptools                75.8.2             pyhff2d567_0    conda-forge

simdjson                  3.12.3               h17cf362_0    conda-forge

six                       1.17.0             pyhd8ed1ab_0    conda-forge

sniffio                   1.3.1              pyhd8ed1ab_1    conda-forge

soupsieve                 2.5                pyhd8ed1ab_1    conda-forge

spdlog                    1.15.2               h7344f28_0    conda-forge

sqlalchemy                2.0.40          py312h52516f5_0    conda-forge

sqlite-anyio              0.2.3                    pypi_0    pypi

stack_data                0.6.3              pyhd8ed1ab_1    conda-forge

terminado                 0.18.1             pyh0d859eb_0    conda-forge

tinycss2                  1.4.0              pyhd8ed1ab_0    conda-forge

tk                        8.6.13               h194ca79_0    conda-forge

tomli                     2.2.1              pyhd8ed1ab_1    conda-forge

tornado                   6.4.2           py312h52516f5_0    conda-forge

tqdm                      4.67.1             pyhd8ed1ab_1    conda-forge

traitlets                 5.14.3             pyhd8ed1ab_1    conda-forge

truststore                0.10.1             pyh29332c3_0    conda-forge

types-python-dateutil     2.9.0.20241206     pyhd8ed1ab_0    conda-forge

typing-extensions         4.13.0               h9fa5a19_1    conda-forge

typing-inspection         0.4.0              pyhd8ed1ab_0    conda-forge

typing_extensions         4.13.0             pyh29332c3_1    conda-forge

typing_utils              0.1.0              pyhd8ed1ab_1    conda-forge

tzdata                    2025b                h78e105d_0    conda-forge

uri-template              1.3.0              pyhd8ed1ab_1    conda-forge

urllib3                   2.3.0              pyhd8ed1ab_0    conda-forge

wcwidth                   0.2.13             pyhd8ed1ab_1    conda-forge

webcolors                 24.11.1            pyhd8ed1ab_0    conda-forge

webencodings              0.5.1              pyhd8ed1ab_3    conda-forge

websocket-client          1.8.0              pyhd8ed1ab_1    conda-forge

wheel                     0.45.1             pyhd8ed1ab_1    conda-forge

yaml                      0.2.5                hf897c2e_2    conda-forge

yaml-cpp                  0.8.0                h2f0025b_0    conda-forge

zeromq                    4.3.5                h5efb499_7    conda-forge

zipp                      3.21.0             pyhd8ed1ab_1    conda-forge

zstandard                 0.23.0          py312hb2c0f52_1    conda-forge

zstd                      1.5.7                hbcf94c1_2    conda-forge
conda env:

name: base

channels:

- conda-forge

dependencies:

- _openmp_mutex=4.5=2_gnu

- alembic=1.15.2=pyhd8ed1ab_0

- annotated-types=0.7.0=pyhd8ed1ab_1

- anyio=4.9.0=pyh29332c3_0

- archspec=0.2.5=pyhd8ed1ab_0

- argon2-cffi=23.1.0=pyhd8ed1ab_1

- argon2-cffi-bindings=21.2.0=py312hb2c0f52_5

- arrow=1.3.0=pyhd8ed1ab_1

- asttokens=3.0.0=pyhd8ed1ab_1

- async-lru=2.0.5=pyh29332c3_0

- async_generator=1.10=pyhd8ed1ab_2

- attrs=25.3.0=pyh71513ae_0

- babel=2.17.0=pyhd8ed1ab_0

- beautifulsoup4=4.13.3=pyha770c72_0

- bleach=6.2.0=pyh29332c3_4

- bleach-with-css=6.2.0=h82add2a_4

- blinker=1.9.0=pyhff2d567_0

- boltons=24.0.0=pyhd8ed1ab_1

- brotli-python=1.1.0=py312h6f74592_2

- bzip2=1.0.8=h68df207_7

- c-ares=1.34.4=h86ecc28_0

- ca-certificates=2025.1.31=hcefe29a_0

- cached-property=1.5.2=hd8ed1ab_1

- cached_property=1.5.2=pyha770c72_1

- certifi=2025.1.31=pyhd8ed1ab_0

- certipy=0.2.2=pyhd8ed1ab_0

- cffi=1.17.1=py312hac81daf_0

- charset-normalizer=3.4.1=pyhd8ed1ab_0

- colorama=0.4.6=pyhd8ed1ab_1

- comm=0.2.2=pyhd8ed1ab_1

- conda=25.3.1=py312h996f985_0

- conda-libmamba-solver=25.3.0=pyhd8ed1ab_0

- conda-package-handling=2.4.0=pyh7900ff3_2

- conda-package-streaming=0.11.0=pyhd8ed1ab_1

- cpp-expected=1.1.0=h4c384f3_0

- cryptography=44.0.2=py312he723553_0

- debugpy=1.8.13=py312h6f74592_0

- decorator=5.2.1=pyhd8ed1ab_0

- defusedxml=0.7.1=pyhd8ed1ab_0

- distro=1.9.0=pyhd8ed1ab_1

- exceptiongroup=1.2.2=pyhd8ed1ab_1

- executing=2.1.0=pyhd8ed1ab_1

- fmt=11.1.4=h97e1849_1

- fqdn=1.5.1=pyhd8ed1ab_1

- frozendict=2.4.6=py312hb2c0f52_0

- greenlet=3.1.1=py312h6f74592_1

- h11=0.14.0=pyhd8ed1ab_1

- h2=4.2.0=pyhd8ed1ab_0

- hpack=4.1.0=pyhd8ed1ab_0

- httpcore=1.0.7=pyh29332c3_1

- httpx=0.28.1=pyhd8ed1ab_0

- hyperframe=6.1.0=pyhd8ed1ab_0

- icu=75.1=hf9b3779_0

- idna=3.10=pyhd8ed1ab_1

- importlib-metadata=8.6.1=pyha770c72_0

- importlib_resources=6.5.2=pyhd8ed1ab_0

- ipykernel=6.29.5=pyh3099207_0

- ipython=9.0.2=pyhfb0248b_0

- ipython_genutils=0.2.0=pyhd8ed1ab_2

- ipython_pygments_lexers=1.1.1=pyhd8ed1ab_0

- isoduration=20.11.0=pyhd8ed1ab_1

- jedi=0.19.2=pyhd8ed1ab_1

- jinja2=3.1.6=pyhd8ed1ab_0

- json5=0.12.0=pyhd8ed1ab_0

- jsonpatch=1.33=pyhd8ed1ab_1

- jsonpointer=3.0.0=py312h996f985_1

- jsonschema=4.23.0=pyhd8ed1ab_1

- jsonschema-specifications=2024.10.1=pyhd8ed1ab_1

- jsonschema-with-format-nongpl=4.23.0=hd8ed1ab_1

- jupyter-lsp=2.2.5=pyhd8ed1ab_1

- jupyter_client=8.6.3=pyhd8ed1ab_1

- jupyter_core=5.7.2=pyh31011fe_1

- jupyter_events=0.12.0=pyh29332c3_0

- jupyter_server=2.15.0=pyhd8ed1ab_0

- jupyter_server_terminals=0.5.3=pyhd8ed1ab_1

- jupyterhub-base=5.2.1=pyh31011fe_0

- jupyterhub-singleuser=5.2.1=pyh31011fe_0

- jupyterlab=4.3.6=pyhd8ed1ab_0

- jupyterlab_pygments=0.3.0=pyhd8ed1ab_2

- jupyterlab_server=2.27.3=pyhd8ed1ab_1

- keyutils=1.6.1=h4e544f5_0

- krb5=1.21.3=h50a48e9_0

- ld_impl_linux-aarch64=2.43=h80caac9_4

- libarchive=3.7.7=h6223a6c_3

- libcurl=8.13.0=h6702fde_0

- libedit=3.1.20250104=pl5321h976ea20_0

- libev=4.33=h31becfc_2

- libexpat=2.7.0=h5ad3122_0

- libffi=3.4.6=he21f813_1

- libgcc=14.2.0=he277a41_2

- libgcc-ng=14.2.0=he9431aa_2

- libgomp=14.2.0=he277a41_2

- libiconv=1.18=hc99b53d_1

- liblzma=5.6.4=h86ecc28_0

- libmamba=2.0.8=hc3f49f9_2

- libmambapy=2.0.8=py312h6af631f_2

- libnghttp2=1.64.0=hc8609a4_0

- libnsl=2.0.1=h31becfc_0

- libsodium=1.0.20=h68df207_0

- libsolv=0.7.30=h62756fc_0

- libsqlite=3.49.1=h5eb1b54_2

- libssh2=1.11.1=ha41c0db_0

- libstdcxx=14.2.0=h3f4de04_2

- libstdcxx-ng=14.2.0=hf1166c9_2

- libuuid=2.38.1=hb4cce97_0

- libxcrypt=4.4.36=h31becfc_1

- libxml2=2.13.7=h2e0c361_0

- libzlib=1.3.1=h86ecc28_2

- lz4-c=1.10.0=h5ad3122_1

- lzo=2.10=h31becfc_1001

- mako=1.3.9=pyhd8ed1ab_0

- mamba=2.0.8=h98989f4_2

- markupsafe=3.0.2=py312h74ce7d3_1

- matplotlib-inline=0.1.7=pyhd8ed1ab_1

- menuinst=2.2.0=py312h996f985_0

- mistune=3.1.3=pyh29332c3_0

- nbclassic=1.2.0=pyhd8ed1ab_0

- nbclient=0.10.2=pyhd8ed1ab_0

- nbconvert-core=7.16.6=pyh29332c3_0

- nbformat=5.10.4=pyhd8ed1ab_1

- ncurses=6.5=ha32ae93_3

- nest-asyncio=1.6.0=pyhd8ed1ab_1

- nlohmann_json=3.11.3=h0a1ffab_1

- notebook=7.3.3=pyhd8ed1ab_0

- notebook-shim=0.2.4=pyhd8ed1ab_1

- oauthlib=3.2.2=pyhd8ed1ab_1

- openssl=3.4.1=hd08dc88_0

- overrides=7.7.0=pyhd8ed1ab_1

- packaging=24.2=pyhd8ed1ab_2

- pamela=1.2.0=pyhd8ed1ab_1

- pandocfilters=1.5.0=pyhd8ed1ab_0

- parso=0.8.4=pyhd8ed1ab_1

- pexpect=4.9.0=pyhd8ed1ab_1

- pickleshare=0.7.5=pyhd8ed1ab_1004

- pip=25.0.1=pyh8b19718_0

- pkgutil-resolve-name=1.3.10=pyhd8ed1ab_2

- platformdirs=4.3.7=pyh29332c3_0

- pluggy=1.5.0=pyhd8ed1ab_1

- prometheus_client=0.21.1=pyhd8ed1ab_0

- prompt-toolkit=3.0.50=pyha770c72_0

- psutil=7.0.0=py312hb2c0f52_0

- ptyprocess=0.7.0=pyhd8ed1ab_1

- pure_eval=0.2.3=pyhd8ed1ab_1

- pybind11-abi=4=hd8ed1ab_3

- pycosat=0.6.6=py312hb2c0f52_2

- pycparser=2.22=pyh29332c3_1

- pydantic=2.11.2=pyh3cfb1c2_0

- pydantic-core=2.33.1=py312h8cbf658_0

- pygments=2.19.1=pyhd8ed1ab_0

- pyjwt=2.10.1=pyhd8ed1ab_0

- pysocks=1.7.1=pyha55dd90_7

- python=3.12.9=h1683364_1_cpython

- python-dateutil=2.9.0.post0=pyhff2d567_1

- python-fastjsonschema=2.21.1=pyhd8ed1ab_0

- python-json-logger=2.0.7=pyhd8ed1ab_0

- python_abi=3.12=6_cp312

- pytz=2025.2=pyhd8ed1ab_0

- pyyaml=6.0.2=py312hcc812fe_2

- pyzmq=26.3.0=py312h2427ae1_0

- readline=8.2=h8382b9d_2

- referencing=0.36.2=pyh29332c3_0

- reproc=14.2.4.post0=h31becfc_1

- reproc-cpp=14.2.4.post0=h2f0025b_1

- requests=2.32.3=pyhd8ed1ab_1

- rfc3339-validator=0.1.4=pyhd8ed1ab_1

- rfc3986-validator=0.1.1=pyh9f0ad1d_0

- rpds-py=0.24.0=py312he7a34ca_0

- ruamel.yaml=0.18.10=py312hb2c0f52_0

- ruamel.yaml.clib=0.2.8=py312hb2c0f52_1

- send2trash=1.8.3=pyh0d859eb_1

- setuptools=75.8.2=pyhff2d567_0

- simdjson=3.12.3=h17cf362_0

- six=1.17.0=pyhd8ed1ab_0

- sniffio=1.3.1=pyhd8ed1ab_1

- soupsieve=2.5=pyhd8ed1ab_1

- spdlog=1.15.2=h7344f28_0

- sqlalchemy=2.0.40=py312h52516f5_0

- stack_data=0.6.3=pyhd8ed1ab_1

- terminado=0.18.1=pyh0d859eb_0

- tinycss2=1.4.0=pyhd8ed1ab_0

- tk=8.6.13=h194ca79_0

- tomli=2.2.1=pyhd8ed1ab_1

- tornado=6.4.2=py312h52516f5_0

- tqdm=4.67.1=pyhd8ed1ab_1

- traitlets=5.14.3=pyhd8ed1ab_1

- truststore=0.10.1=pyh29332c3_0

- types-python-dateutil=2.9.0.20241206=pyhd8ed1ab_0

- typing-extensions=4.13.0=h9fa5a19_1

- typing-inspection=0.4.0=pyhd8ed1ab_0

- typing_extensions=4.13.0=pyh29332c3_1

- typing_utils=0.1.0=pyhd8ed1ab_1

- tzdata=2025b=h78e105d_0

- uri-template=1.3.0=pyhd8ed1ab_1

- urllib3=2.3.0=pyhd8ed1ab_0

- wcwidth=0.2.13=pyhd8ed1ab_1

- webcolors=24.11.1=pyhd8ed1ab_0

- webencodings=0.5.1=pyhd8ed1ab_3

- websocket-client=1.8.0=pyhd8ed1ab_1

- wheel=0.45.1=pyhd8ed1ab_1

- yaml=0.2.5=hf897c2e_2

- yaml-cpp=0.8.0=h2f0025b_0

- zeromq=4.3.5=h5efb499_7

- zipp=3.21.0=pyhd8ed1ab_1

- zstandard=0.23.0=py312hb2c0f52_1

- zstd=1.5.7=hbcf94c1_2

- pip:

- jupyter-collaboration==4.0.0

- jupyter-collaboration-ui==2.0.0

- jupyter-docprovider==2.0.0

- jupyter-server-fileid==0.9.3

- jupyter-server-ydoc==2.0.0

- jupyter-ydoc==3.0.3

- pycrdt==0.12.11

- pycrdt-websocket==0.15.4

- sqlite-anyio==0.2.3

prefix: /opt/conda

Command Line Output

[I 2025-04-08 21:54:54.681 ServerApp] jupyter_lsp | extension was successfully linked.
[I 2025-04-08 21:54:54.682 ServerApp] jupyter_server_fileid | extension was successfully linked.
[I 2025-04-08 21:54:54.684 ServerApp] jupyter_server_terminals | extension was successfully linked.
[I 2025-04-08 21:54:54.685 ServerApp] jupyter_server_ydoc | extension was successfully linked.
[I 2025-04-08 21:54:54.687 ServerApp] jupyterlab | extension was successfully linked.
[I 2025-04-08 21:54:54.688 ServerApp] nbclassic | extension was successfully linked.
[I 2025-04-08 21:54:54.690 ServerApp] notebook | extension was successfully linked.
[I 2025-04-08 21:54:54.691 ServerApp] Writing Jupyter server cookie secret to /home/jovyan/.local/share/jupyter/runtime/jupyter_cookie_secret
[I 2025-04-08 21:54:54.796 ServerApp] notebook_shim | extension was successfully linked.
[W 2025-04-08 21:54:54.802 ServerApp] WARNING: The Jupyter server is listening on all IP addresses and not using encryption. This is not recommended.
[I 2025-04-08 21:54:54.802 ServerApp] notebook_shim | extension was successfully loaded.
[I 2025-04-08 21:54:54.803 ServerApp] jupyter_lsp | extension was successfully loaded.
[I 2025-04-08 21:54:54.803 FileIdExtension] Configured File ID manager: ArbitraryFileIdManager
[I 2025-04-08 21:54:54.804 FileIdExtension] ArbitraryFileIdManager : Configured root dir: /home/jovyan
[I 2025-04-08 21:54:54.804 FileIdExtension] ArbitraryFileIdManager : Configured database path: /home/jovyan/.local/share/jupyter/file_id_manager.db
[I 2025-04-08 21:54:54.804 FileIdExtension] ArbitraryFileIdManager : Successfully connected to database file.
[I 2025-04-08 21:54:54.804 FileIdExtension] ArbitraryFileIdManager : Creating File ID tables and indices with journal_mode = DELETE
[I 2025-04-08 21:54:54.809 FileIdExtension] Attached event listeners.
[I 2025-04-08 21:54:54.809 ServerApp] jupyter_server_fileid | extension was successfully loaded.
[I 2025-04-08 21:54:54.810 ServerApp] jupyter_server_terminals | extension was successfully loaded.
[I 2025-04-08 21:54:54.812 ServerApp] jupyter_server_ydoc | extension was successfully loaded.
[I 2025-04-08 21:54:54.813 LabApp] JupyterLab extension loaded from /opt/conda/lib/python3.12/site-packages/jupyterlab
[I 2025-04-08 21:54:54.813 LabApp] JupyterLab application directory is /opt/conda/share/jupyter/lab
[I 2025-04-08 21:54:54.813 LabApp] Extension Manager is 'pypi'.
[I 2025-04-08 21:54:54.851 ServerApp] jupyterlab | extension was successfully loaded.

| | | |_ __  | | | | ___

| || | ' /  / _ |  / -)

_/| ./_,_,|____|

|_|
Read the migration plan to Notebook 7 to learn about the new features and the actions to take if you are using extensions.
https://jupyter-notebook.readthedocs.io/en/latest/migrate_to_notebook7.html
Please note that updating to Notebook 7 might break some of your extensions.
[I 2025-04-08 21:54:54.853 ServerApp] nbclassic | extension was successfully loaded.

[I 2025-04-08 21:54:54.854 ServerApp] notebook | extension was successfully loaded.

[I 2025-04-08 21:54:54.854 ServerApp] Serving notebooks from local directory: /home/jovyan

[I 2025-04-08 21:54:54.854 ServerApp] Jupyter Server 2.15.0 is running at:

[I 2025-04-08 21:54:54.854 ServerApp] http://localhost:8888/lab?token=25b0ffa82ce6f94136155caf2f875fd20029536d2e4c1d11

[I 2025-04-08 21:54:54.854 ServerApp]     http://127.0.0.1:8888/lab?token=25b0ffa82ce6f94136155caf2f875fd20029536d2e4c1d11

[I 2025-04-08 21:54:54.855 ServerApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).

[C 2025-04-08 21:54:54.856 ServerApp]
To access the server, open this file in a browser:
    file:///home/jovyan/.local/share/jupyter/runtime/jpserver-121-open.html
Or copy and paste one of these URLs:
    http://localhost:8888/lab?token=25b0ffa82ce6f94136155caf2f875fd20029536d2e4c1d11
    http://127.0.0.1:8888/lab?token=25b0ffa82ce6f94136155caf2f875fd20029536d2e4c1d11

[I 2025-04-08 21:54:54.864 ServerApp] Skipped non-installed server(s): bash-language-server, dockerfile-language-server-nodejs, javascript-typescript-langserver, jedi-language-server, julia-language-server, pyright, python-language-server, python-lsp-server, r-languageserver, sql-language-server, texlab, typescript-language-server, unified-language-server, vscode-css-languageserver-bin, vscode-html-languageserver-bin, vscode-json-languageserver-bin, yaml-language-server

Browser Output

Unsatisfied version 6.3.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/coreutils (required ^6.4.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 4.3.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/ui-components (required ^4.4.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 4.3.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/translation (required ^4.4.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 4.4.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/apputils (required ^4.5.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 7.3.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/services (required ^7.4.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 4.4.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/apputils (required ^4.5.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 4.3.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/translation (required ^4.4.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 6.3.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/coreutils (required ^6.4.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 7.3.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/services (required ^7.4.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 4.3.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/ui-components (required ^4.4.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 4.3.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/codemirror (required ^4.4.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 4.3.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/statedb (required ^4.4.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 4.3.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/logconsole (required ^4.4.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 4.3.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/statusbar (required ^4.4.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 4.3.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/notebook (required ^4.4.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 4.3.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/settingregistry (required ^4.4.0)
overrideMethod @ hook.js:608
hook.js:608 Unsatisfied version 4.3.6 from @jupyterlab/application-top of shared singleton module @jupyterlab/fileeditor (required ^4.4.0)
overrideMethod @ hook.js:608
hook.js:608 Failed to create module: package: @jupyter/collaboration-extension; module: ./extension
overrideMethod @ hook.js:608
hook.js:608 Failed to create module: package: @jupyter/docprovider-extension; module: ./extension
overrideMethod @ hook.js:608
hook.js:608 TypeError: Class extends value undefined is not a constructor or null
    at 240 (240.cc74569552563e7ef963.js?v=cc74569552563e7ef963:1:11405)
    at x (remoteEntry.eefc7fe0a3fa35fba92b.js:1:792)
    at remoteEntry.eefc7fe0a3fa35fba92b.js:1:3180
    at Object. (remoteEntry.0beed018f87e6ce049a3.js:1:8491)
    at x (remoteEntry.0beed018f87e6ce049a3.js:1:864)
    at 4842 (842.0032d4a0fb7e1b1ee1f0.js?v=0032d4a0fb7e1b1ee1f0:1:214)
    at x (remoteEntry.0beed018f87e6ce049a3.js:1:864)
    at remoteEntry.0beed018f87e6ce049a3.js:1:333
    at $ (6180.344c80c0b5b0ee3721e0.js?v=344c80c0b5b0ee3721e0:1:935)
    at async Promise.allSettled (index 2)
overrideMethod @ hook.js:608
hook.js:608 ReferenceError: Cannot access 'J' before initialization
    at Module.IForkManagerToken (240.cc74569552563e7ef963.js?v=cc74569552563e7ef963:1:4431)
    at 703 (703.330942e5b860eabc4225.js?v=330942e5b860eabc4225:1:5262)
    at x (remoteEntry.eefc7fe0a3fa35fba92b.js:1:792)
    at remoteEntry.eefc7fe0a3fa35fba92b.js:1:263
    at $ (6180.344c80c0b5b0ee3721e0.js?v=344c80c0b5b0ee3721e0:1:935)
    at async Promise.allSettled (index 3)
    at async H (6180.344c80c0b5b0ee3721e0.js?v=344c80c0b5b0ee3721e0:1:11056)
overrideMethod @ hook.js:608
hook.js:608 TypeError: No provider for: @jupyterlab/notebook:INotebookCellExecutor.
    at i.resolveRequiredService (jlab_core.a4c5e1f5bac9ba5dc7f6.js?v=a4c5e1f5bac9ba5dc7f6:1:1796706)
    at jlab_core.a4c5e1f5bac9ba5dc7f6.js?v=a4c5e1f5bac9ba5dc7f6:1:1795240
    at Array.map ()
    at i.activatePlugin (jlab_core.a4c5e1f5bac9ba5dc7f6.js?v=a4c5e1f5bac9ba5dc7f6:1:1795227)
    at i.resolveRequiredService (jlab_core.a4c5e1f5bac9ba5dc7f6.js?v=a4c5e1f5bac9ba5dc7f6:1:1796808)
    at jlab_core.a4c5e1f5bac9ba5dc7f6.js?v=a4c5e1f5bac9ba5dc7f6:1:1795240
    at Array.map ()
    at i.activatePlugin (jlab_core.a4c5e1f5bac9ba5dc7f6.js?v=a4c5e1f5bac9ba5dc7f6:1:1795227)
    at jlab_core.a4c5e1f5bac9ba5dc7f6.js?v=a4c5e1f5bac9ba5dc7f6:1:1795834
    at Array.map ()

Note that if jupyter-collaboration is not installed, things work as expected.

docker run --rm -it -p 8888:8888 quay.io/jupyter/minimal-notebook:2025-04-04

Again, open JupyterLab in your browser.

Observe that there's now a "Notebook" editor option:

Also observe that the console is not filled with warnings or errors:

[nwalters512]

For completeness, in the broken case, any attempt to open an .ipynb file just opens the JSON editor:

Even right clicking on the file and selecting "Open With" -> "Notebook" doesn't open the notebook editor.

[nwalters512]

Note that the error is also reproducible with the latest 3.x version of jupyter-collaboration:

FROM quay.io/jupyter/minimal-notebook:2025-04-04
RUN pip3 install jupyter-collaboration==3.1.1

It is not reproducible with the latest 2.x:

FROM quay.io/jupyter/minimal-notebook:2025-04-04
RUN pip3 install jupyter-collaboration==2.1.5

However, in that case, a warning about @jupyter/ydoc is printed:

[nwalters512]

Another data point: if the extension is installed with conda instead of pip3, things work:

FROM quay.io/jupyter/minimal-notebook:2025-04-04
RUN conda install jupyter-collaboration==3.1.0

(3.1.1 is not available on conda-forge yet, and the install of 4.0.0 fails with some dependency constraint errors)

[krassowski]

You say:

RUN pip3 install jupyter-collaboration==4.0.0
JupyterLab version: 4.3.6

But jupyter-collaboration 4.0 requires JupyterLab 4.4.0 or newer.

Oh, there is something wrong - the releaser script dropped the line with requirement from the dependencies array:

jupyter-collaboration/projects/jupyter-collaboration/pyproject.toml

Lines 32 to 36 in dc47a9e

	dependencies = [
	"jupyter_collaboration_ui>=2.0.0",
	"jupyter_docprovider>=2.0.0",
	"jupyter_server_ydoc>=2.0.0",
	]

This needs a hotfix.

[nwalters512]

Ah, thanks for the explanation! To satisfy my own curiosity: do you know how this ever could have worked? I was running 3.1.0 with jupyterlab==4.3.6 for a while, and it only recently started breaking. I guess my specific question is, where does the version constraint that's warned about on the client come from, and what would cause that to randomly start breaking when neither jupyterlab nor jupyter-collaboration were upgraded?

Regarding the fix for this: I'm assuming I should wait for a 4.0.1 and then I should be good?

[krassowski]

jupyter-collaboration 4.0 was released two days ago so I think this is what changed. Yes, publishing 4.0.1 in a sec.

[nwalters512]

Sorry, in case you missed it in the thread, things were also broken with 3.1.1 and 3.1.0. That's what's confusing me.

To be specific, images built from the following Dockerfiles were also broken in this way:

FROM quay.io/jupyter/minimal-notebook:2025-04-04
RUN pip3 install jupyter-collaboration==3.1.1

FROM quay.io/jupyter/minimal-notebook:2025-04-04
RUN pip3 install jupyter-collaboration==3.1.0

However, this was working correctly for some amount of time before they broke recently.

[nwalters512]

The following are also broken (I was ruling out a recent base image update):

FROM quay.io/jupyter/minimal-notebook:2025-03-31
RUN pip3 install jupyter-collaboration==3.1.1

FROM quay.io/jupyter/minimal-notebook:2025-03-31
RUN pip3 install jupyter-collaboration==3.1.0

FROM quay.io/jupyter/minimal-notebook:2025-03-03
RUN pip3 install jupyter-collaboration==3.1.1

FROM quay.io/jupyter/minimal-notebook:2025-03-03
RUN pip3 install jupyter-collaboration==3.1.0

[krassowski]

Oh, yes, this is very much related to the 3.x versions missing other pins (see #459 and #461).

[krassowski]

v4.0.1 and v3.1.2 were published and v4.0.0 was yanked. The issues should be gone in new versions, as long as the package resolutions are clean (e.i. pip check returns no issues).