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GitHub Actions - checkout - Error: Parameter 'commandLine' cannot be null or empty

Getting the following error while checking out code on self-hosted windows 10 machine:

Error: Parameter 'commandLine' cannot be null or empty.

The workflow file contains the following steps:

steps:
  
  - name: Checkout Code
    uses: actions/checkout@v4
    with:
      fetch-depth: 0

  - name: Verify PowerShell Version
    run: pwsh -Command "$PSVersionTable"
    shell: pwsh
    
  - name: Debug Start
    run: echo "Starting the workflow"
    shell: cmd
    
  - name: Debug Checkout
    run: echo "Checkout completed"
    shell: cmd            

  - name: Verify Checkout
    run: echo "Checkout completed successfully"
    shell: cmd
Solution

  • You need to install Git in your self-hosted machine (see here more details).

    If the runner is already configured you need to restart it after the Git installation.