Getting error `manifest.map is not a function`

[cb80]

Description: Every now and then (but not always) I get the following error in the GitHub workflow logs for the setup-go step:

Setup go version spec stable
Error: manifest.map is not a function

It seems to occur somewhere between these lines https://github.com/actions/setup-go/blob/main/src/main.ts#L21-L45.

What can I do, to analyze this further?

Action version: v5

    - name: Setup Go
      uses: actions/setup-go@v5
      with:
        go-version: stable

Platform:

• Ubuntu
• macOS
• Windows

Runner type:

• Hosted
• Self-hosted

Tools version:
stable

Repro steps:
It's hard to reproduce and I cannot share the logs, as they reside on a GitHub enterprise instance.

Expected behavior:
No error. latest shall resolve to the latest Go version which is go1.24.2 at the moment.

Actual behavior:
Error occurs while resolving latest.

[priya-kinthali]

Hello @cb80👋,
Thank you for reporting this issue. We will investigate it and get back to you as soon as we have some feedback.

[priyagupta108]

Hello @cb80 👋,
We've merged the pull request #586 with possible fix. Could you please try to use actions/setup-go@main to confirm that it works as expected.
Thank you!

[cb80]

Hello @priyagupta108 👋
After our enterprise instance synced the changes, I have not seen the error again. For the moment it looks good, but the error occurred seldomly and it may still be there. If it does not come up again, I will close the GH issue next Friday.
Thank you

[cb80]

@priyagupta108
The issue did not occur again, so I guess it is fixed and will close the issue.
Thank you so much!