Can't install package

[RRiva]

Affects: JuliaCall

Describe the bug

Hi, I'm using pixi to manage the dependencies, and specified in the pyproject.toml

dependencies = [
    "juliacall (>=0.9.0,<1.0.0)",
]

Then, I generated the lock file with pixi lock. I only need 1 Julia package, which I specified in juliapkg.json

{
    "julia": "1.10",
    "packages": {
        "PeriodicMatrices.jl": {
            "uuid": "dd9cd634-6083-4ae5-8f2e-b983833de2bb",
            "version": "0.1.11"
        }
    }
}

For starting, I copy pasted the example from your guide in a python script

from juliacall import Main as jl
jl.println("Hello from Julia!")

Running this file with pixi run python script.py produces

[juliapkg] Found dependencies: c:\users\...\juliapkg.json
[juliapkg] Found dependencies: c:\users\...\.pixi\envs\...\lib\site-packages\juliapkg\juliapkg.json
[juliapkg] Found dependencies: c:\...\.pixi\envs\...\lib\site-packages\juliacall\juliapkg.json
[juliapkg] Locating Julia ^1.10.3
[juliapkg] Using Julia 1.11.6 at C:\Users\...\.julia\juliaup\julia-1.11.6+0.x64.w64.mingw32\bin\julia.exe
[juliapkg] Using Julia project at C:\Users\...\Documents\Projects\wtstab\sysid\.pixi\envs\dev\julia_env
[juliapkg] Writing Project.toml:
             [deps]
             PeriodicMatrices.jl = "dd9cd634-6083-4ae5-8f2e-b983833de2bb"
             PythonCall = "6099a3de-0909-46bc-b1f4-468b9a2dfc0d"
             OpenSSL_jll = "458c3c95-2e84-50aa-8efc-19380b2a3a95"
             [compat]
             PeriodicMatrices.jl = "^0.1.11"
             PythonCall = "=0.9.27"
             OpenSSL_jll = "3.0.0 - 3.5"
[juliapkg] Installing packages:
             import Pkg
             Pkg.Registry.update()
             Pkg.add([
               Pkg.PackageSpec(name="PeriodicMatrices.jl", uuid="dd9cd634-6083-4ae5-8f2e-b983833de2bb"),
               Pkg.PackageSpec(name="PythonCall", uuid="6099a3de-0909-46bc-b1f4-468b9a2dfc0d"),
               Pkg.PackageSpec(name="OpenSSL_jll", uuid="458c3c95-2e84-50aa-8efc-19380b2a3a95"),
             ])
             Pkg.resolve()
             Pkg.precompile()
ERROR: TypeError: in typeassert, expected String, got a value of type Dict{String, Any}
Stacktrace:
  [1] get_uuid_name(project::Dict{String, Any}, uuid::Base.UUID)
    @ Base .\loading.jl:3515
  [2] collect_preferences(project_toml::String, uuid::Base.UUID)
    @ Base .\loading.jl:3559
  [3] get_preferences(uuid::Base.UUID)
    @ Base .\loading.jl:3625
  [4] get_preferences_hash(uuid::Base.UUID, prefs_list::Vector{String})
    @ Base .\loading.jl:3638
  [5] stale_cachefile(modkey::Base.PkgId, build_id::UInt128, modpath::String, cachefile::String; ignore_loaded::Bool, requested_flags::Base.CacheFlags, reasons::Dict{String, Int64}, stalecheck::Bool)
    @ Base .\loading.jl:3948
  [6] stale_cachefile
    @ .\loading.jl:3733 [inlined]
  [7] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String, build_id::UInt128, stalecheck::Bool; reasons::Dict{String, Int64}, DEPOT_PATH::Vector{String})
    @ Base .\loading.jl:1985
  [8] _require(pkg::Base.PkgId, env::String)
    @ Base .\loading.jl:2527
  [9] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2388
 [10] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
 [11] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
 [12] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2375
 [13] macro expansion
    @ .\loading.jl:2314 [inlined]
 [14] macro expansion
    @ .\lock.jl:273 [inlined]
 [15] __require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2271
 [16] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
 [17] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
 [18] require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2260
Traceback (most recent call last):
  File "C:\Users\...\script.py", line 1, in <module>
    from juliacall import Main as jl
  File "C:\Users\...\.pixi\envs\...\Lib\site-packages\juliacall\__init__.py", line 288, in <module>
    init()
    ~~~~^^
  File "C:\Users\...\.pixi\envs\...\Lib\site-packages\juliacall\__init__.py", line 160, in init
    CONFIG['exepath'] = exepath = juliapkg.executable()
                                  ~~~~~~~~~~~~~~~~~~~^^
  File "C:\Users\...\.pixi\envs\...\Lib\site-packages\juliapkg\deps.py", line 435, in executable
    resolve()
    ~~~~~~~^^
  File "C:\Users\...\.pixi\envs\...\Lib\site-packages\juliapkg\deps.py", line 396, in resolve
    run(
    ~~~^
        [
        ^
    ...<7 lines>...
        env=env,
        ^^^^^^^^
    )
    ^
  File "C:\Users\...\.pixi\envs\dev\Lib\subprocess.py", line 577, in run
    raise CalledProcessError(retcode, process.args,
                             output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['C:\\Users\\...\\.julia\\juliaup\\julia-1.11.6+0.x64.w64.mingw32\\bin\\julia.exe', '--project=C:\\Users\\...\\.pixi\\envs\\...\\julia_env', '--startup-file=no', '-e', 'import Pkg\nPkg.Registry.update()\nPkg.add([\n  Pkg.PackageSpec(name="PeriodicMatrices.jl", uuid="dd9cd634-6083-4ae5-8f2e-b983833de2bb"),\n  Pkg.PackageSpec(name="PythonCall", uuid="6099a3de-0909-46bc-b1f4-468b9a2dfc0d"),\n  Pkg.PackageSpec(name="OpenSSL_jll", uuid="458c3c95-2e84-50aa-8efc-19380b2a3a95"),\n])\nPkg.resolve()\nPkg.precompile()']' returned non-zero exit status 1.

This package installs perfectly fine with Julia Pkg.

Your system
Please provide detailed information about your system:

• Windows 11
• Julia 1.11, python 3.12

Additional context
Add any other context about the problem here.

[cjdoris]

You should put "PeriodicMatrices" in the juliapkg file not "PeriodicMatrices.jl".

Does this fix the error? If so, the error message is totally mysterious and unhelpful!

[cjdoris]

Regardless it would be good to add some validation of user input to juliapkg - it should have caught that "PeriodicMatrices.jl" is not a valid package name because it contains ".".

[RRiva]

Hi Chris, thank you for the swift reply, it worked! And sorry for the silly error, I'm very new to Julia 😅

[cjdoris]

Ok I'm glad that worked! I'll add some input validation so you get a more helpful error message next time.