OSError: [WinError 127] The specified procedure could not be found

[srhouyu]

Hello, I installed torch_geometric successfully. But my script has an error at line from torch_geometric.data import Data.

Traceback (most recent call last):
  File "c:\Users\home_server\OneDrive\Visual Studio Code\myproj\run.py", line 5, in <module>
    from Mesh import Mesh
  File "c:\Users\home_server\OneDrive\Visual Studio Code\myproj\Mesh.py", line 10, in <module>
    from torch_geometric.data import Data
  File "C:\Users\home_server\AppData\Local\Programs\Python\Python310\lib\site-packages\torch_geometric\__init__.py", line 4, in <module>
    import torch_geometric.data
  File "C:\Users\home_server\AppData\Local\Programs\Python\Python310\lib\site-packages\torch_geometric\data\__init__.py", line 1, in <module>
    from .data import Data
  File "C:\Users\home_server\AppData\Local\Programs\Python\Python310\lib\site-packages\torch_geometric\data\data.py", line 20, in <module>
    from torch_sparse import SparseTensor
  File "C:\Users\home_server\AppData\Local\Programs\Python\Python310\lib\site-packages\torch_sparse\__init__.py", line 18, in <module>
    torch.ops.load_library(spec.origin)
  File "C:\Users\home_server\AppData\Local\Programs\Python\Python310\lib\site-packages\torch\_ops.py", line 643, in load_library
    ctypes.CDLL(path)
  File "C:\Users\home_server\AppData\Local\Programs\Python\Python310\lib\ctypes\__init__.py", line 374, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: [WinError 127] The specified procedure could not be found

It didn't specify what is not found. So I tried to look at where the error happens. I put a print(self._name) at line 374, before self._handle = _dlopen(self._name, mode), in file ...\Python310\lib\ctypes\__init__.py

Rerun the script, and I see this:

kernel32
kernel32
C:\Users\home_server\AppData\Local\Programs\Python\Python310\lib\site-packages\numpy\.libs\libopenblas64__v0.3.21-gcc_10_3_0.dll
kernel32.dll
vcruntime140.dll
msvcp140.dll
vcruntime140_1.dll
kernel32
C:\Users\home_server\AppData\Local\Programs\Python\Python310\Lib\site-packages\torch_sparse\_version_cuda.pyd
C:\Users\home_server\AppData\Local\Programs\Python\Python310\Lib\site-packages\torch_sparse\_convert_cuda.pyd
Traceback (most recent call last):
...

Seems _convert_cuda.pyd is the missing one.

But I copy-paste this directory to Explorer, and find _convert_cuda.pyd is right there.

I don't know what to do next.

[rusty1s]

Mh, good old Windows issues :( I am not totally sure TBH, but if you cannot make it work, I suggest to simple uninstall torch-sparse and install PyG from latest master

pip install git+https://github.com/pyg-team/pytorch_geometric.git

PyG from latest master does not require that torch-sparse needs to be installed.

[srhouyu]

Thanks. I uninstalled torch-sparse:

pip uninstall torch-sparse
Found existing installation: torch-sparse 0.6.17+pt113cu117
Uninstalling torch-sparse-0.6.17+pt113cu117:
  Would remove:
    c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages\torch_sparse-0.6.17+pt113cu117.dist-info\*
    c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages\torch_sparse\*
Proceed (Y/n)? Y
  Successfully uninstalled torch-sparse-0.6.17+pt113cu117

And installed PyG:

pip install git+https://github.com/pyg-team/pytorch_geometric.git
Collecting git+https://github.com/pyg-team/pytorch_geometric.git
  Cloning https://github.com/pyg-team/pytorch_geometric.git to c:\users\home_server\appdata\local\temp\pip-req-build-7aifbalu
  Running command git clone --filter=blob:none --quiet https://github.com/pyg-team/pytorch_geometric.git 'C:\Users\home_server\AppData\Local\Temp\pip-req-build-7aifbalu'
  Resolved https://github.com/pyg-team/pytorch_geometric.git to commit a8eca781a7ea5abf130095ccdaedd4129332415d
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Requirement already satisfied: tqdm in c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages (from torch-geometric==2.3.0) (4.64.1)
Requirement already satisfied: jinja2 in c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages (from torch-geometric==2.3.0) (3.1.2)
Requirement already satisfied: pyparsing in c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages (from torch-geometric==2.3.0) (3.0.9)
Requirement already satisfied: scipy in c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages (from torch-geometric==2.3.0) (1.10.1)
Requirement already satisfied: scikit-learn in c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages (from torch-geometric==2.3.0) (1.2.2)
Requirement already satisfied: numpy in c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages (from torch-geometric==2.3.0) (1.24.2)
Requirement already satisfied: requests in c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages (from torch-geometric==2.3.0) (2.28.2)
Requirement already satisfied: MarkupSafe>=2.0 in c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages (from jinja2->torch-geometric==2.3.0) (2.1.2)
Requirement already satisfied: urllib3<1.27,>=1.21.1 in c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages (from requests->torch-geometric==2.3.0) (1.26.14)
Requirement already satisfied: charset-normalizer<4,>=2 in c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages (from requests->torch-geometric==2.3.0) (3.0.1)
Requirement already satisfied: certifi>=2017.4.17 in c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages (from requests->torch-geometric==2.3.0) (2022.12.7)
Requirement already satisfied: idna<4,>=2.5 in c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages (from requests->torch-geometric==2.3.0) (3.4)
Requirement already satisfied: threadpoolctl>=2.0.0 in c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages (from scikit-learn->torch-geometric==2.3.0) (3.1.0)
Requirement already satisfied: joblib>=1.1.1 in c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages (from scikit-learn->torch-geometric==2.3.0) (1.2.0)
Requirement already satisfied: colorama in c:\users\home_server\appdata\local\programs\python\python310\lib\site-packages (from tqdm->torch-geometric==2.3.0) (0.4.6)
Building wheels for collected packages: torch-geometric
  Building wheel for torch-geometric (pyproject.toml) ... done
  Created wheel for torch-geometric: filename=torch_geometric-2.3.0-py3-none-any.whl size=912826 sha256=d822a1632505716f3f37b8bb6dc36de5eb2a8eeae08a9274c6dba0411e22586a
  Stored in directory: C:\Users\home_server\AppData\Local\Temp\pip-ephem-wheel-cache-41ud8nr3\wheels\d3\78\eb\9e26525b948d19533f1688fb6c209cec8a0ba793d39b49ae8f
Installing collected packages: torch-geometric
  Attempting uninstall: torch-geometric
    Found existing installation: torch-geometric 2.2.0
    Uninstalling torch-geometric-2.2.0:
      Successfully uninstalled torch-geometric-2.2.0
Successfully installed torch-geometric-2.3.0

This time the error changed:

kernel32
kernel32
C:\Users\home_server\AppData\Local\Programs\Python\Python310\lib\site-packages\numpy\.libs\libopenblas64__v0.3.21-gcc_10_3_0.dll
kernel32.dll
vcruntime140.dll
msvcp140.dll
vcruntime140_1.dll
kernel32
C:\Users\home_server\AppData\Local\Programs\Python\Python310\Lib\site-packages\torch_scatter\_version_cuda.pyd
C:\Users\home_server\AppData\Local\Programs\Python\Python310\Lib\site-packages\torch_scatter\_scatter_cuda.pyd
C:\Users\home_server\AppData\Local\Programs\Python\Python310\lib\site-packages\torch_geometric\typing.py:29: UserWarning: An issue occurred while importing 'torch-scatter'. Disabling its usage. Stacktrace: [WinError 127] The specified procedure could not be found
  warnings.warn(f"An issue occurred while importing 'torch-scatter'. "
C:\Users\home_server\AppData\Local\Programs\Python\Python310\Lib\site-packages\torch_cluster\_version_cuda.pyd
C:\Users\home_server\AppData\Local\Programs\Python\Python310\Lib\site-packages\torch_cluster\_grid_cuda.pyd
C:\Users\home_server\AppData\Local\Programs\Python\Python310\Lib\site-packages\torch_cluster\_graclus_cuda.pyd
C:\Users\home_server\AppData\Local\Programs\Python\Python310\Lib\site-packages\torch_cluster\_fps_cuda.pyd
Traceback (most recent call last):
...
...

Maybe there still exist some problem. Is it torch-scatter?

[EdisonLeeeee]

It appears that both torch-scatter and torch-cluster are experiencing the same issues. For PyG 2.3, torch-cluster is also an optional requirement and can be uninstalled.

[srhouyu]

I uninstalled torch-cluster and torch-scatter, and reinstalled torch-scatter.

It works!

Thanks a lot