git exits with 128 in my action about ghaction-github-pages

[MohnishKalia]

Was running into this issue as well and believe I have found a fix. The default GITHUB_TOKEN secret for the action doesn't appear to have the permission to write to the contents of the repository. Adding the following to the top of the action below name: fixed it for me.

permissions: 
  contents: write

[DarrenDanielDay]

Here's the doc:

https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/enabling-features-for-your-repository/managing-github-actions-settings-for-a-repository#setting-the-permissions-of-the-github_token-for-your-repository

Adding permission in the config file works, and you can also modify the GitHub Actions settings of your repository to enable write permissions without modifying the config file.

[asm0dey]

Thanks folks! Probably it should be added into the doc (or did I miss it?)