Could not install stable-diffusion-webui (StabilityMatrix.Core.Exceptions.ProcessException: Venv creation failed with code 1

[funkinaoki]

Trying to install Stable Diffusion WebUI from StablityMatrix, but this error "Package Modification Failed" comes out. I could install and use ComfyUI.
Error code:

Unpacking resources
Unpacking resources
Download Complete
C:\Users\my_name\AppData\Local\Temp\0ec8c814-55da-41a5-b69d-fa251c113653_StabilityMatrix-win-x64.zip.653\Data\Assets\Python310\python.exe: No module named virtualenv

Could not install stable-diffusion-webui (StabilityMatrix.Core.Exceptions.ProcessException: Venv creation failed with code 1
   at StabilityMatrix.Core.Python.PyVenvRunner.Setup(Boolean existsOk, Action`1 onConsoleOutput, CancellationToken cancellationToken)
   at StabilityMatrix.Core.Models.Packages.A3WebUI.InstallPackage(String installLocation, TorchVersion torchVersion, SharedFolderMethod selectedSharedFolderMethod, DownloadPackageVersionOptions versionOptions, IProgress`1 progress, Action`1 onConsoleOutput)
   at StabilityMatrix.Core.Models.Packages.A3WebUI.InstallPackage(String installLocation, TorchVersion torchVersion, SharedFolderMethod selectedSharedFolderMethod, DownloadPackageVersionOptions versionOptions, IProgress`1 progress, Action`1 onConsoleOutput)
   at StabilityMatrix.Core.Models.PackageModification.InstallPackageStep.ExecuteAsync(IProgress`1 progress)
   at StabilityMatrix.Core.Models.PackageModification.PackageModificationRunner.ExecuteSteps(IReadOnlyList`1 steps))

[Stable Diffusion WebUI Folder]

[Stable Diffusion WebUI Folder / venv]

• OS: Windows 10
• Python(stability matrix): 3.10.11
• Stability matrix version: 2.9.0

[p-veloso]

I am not sure what the official solution is, but it seems that your Python does not have the virtualenv library, so it is not able to create a custom environment for the package. You can try to install it manually in your command line with pip.

pip install virtualenv

[ratzorizzo69]

same problem here for v 2.9.0

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[github-actions]

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