UsePythonVersion0 error in self hosted runner on windows

Following is the code in my yml file.

- task: UsePythonVersion@0
  inputs:
    versionSpec: '3.x'
    addToPath: true
    architecture: 'x64'

I am using DevOps on self-hosted runner installed on windows 10. Getting following error.

There is python-3.12.5-amd64.exe in C:\agent_work_tool\Python\3.12.5\x64 directory.

Refer to this doc: UsePythonVersion@0 - Use Python version v0 task

To setup the Python files in self-hosted agent, you need to follow the directory structure in _tool folder:

$AGENT_TOOLSDIRECTORY/
    Python/
        {version number}/
            {platform}/
                {tool files}
            {platform}.complete

If the python folder only contains .exe file, the configuration is not valid.

You can refer to the following steps to configure the Python files to use UsePythonVersion@0 Task.

Step1: Download the required Python version package in Github: Python-versions

In your case, you have downloaded the correct package(contain python-3.12.5-amd64.exe).

Step2: We need to manually execute the python-3.12.5-amd64.exe. It will generate all configuration files.

Path: C:\Python312 or C:\Users\(Your logged in User)\AppData\Local\Programs\Python\Python312

For example:

Step3: We need copy all files in Python312 folder and paste them to the path C:\agent\_work\_tool\Python\3.12.5\x64

Step4: We need to create an empty file: x64.complete at the same path of x64 folder.

For example:

Here is the full directory structure:

$AGENT_TOOLSDIRECTORY/
    Python/
        3.12.5/
            x64/
                {tool files}
            x64.complete

Finally, you can use the Use Python version task in Azure Pipeline to set the correct version.

YAML sample:

- task: UsePythonVersion@0
  inputs:
    versionSpec: '3.12.5'
    addToPath: true
    architecture: 'x64'

Result: