Error: Unable to find Node version 'nightly' for platform linux and architecture x64.

[bcheidemann]

Description:

Error: Unable to find Node version 'nightly' for platform linux and architecture x64.

Action version:
actions/setup-node@v6

Platform:

• Ubuntu
• macOS
• Windows

Runner type:

• Hosted
• Self-hosted

Tools version:
n/a

Repro steps:
A description with steps to reproduce the issue. If you have a public example or repo to share, please provide the link.

      - name: Setup Node
        uses: actions/setup-node@v6
        with:
          cache: npm
          node-version: nightly

Expected behavior:
Should setup Node nightly without error.

Actual behavior:
Fails with error:

Error: Unable to find Node version 'nightly' for platform linux and architecture x64.

[priya-kinthali]

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

[priya-kinthali]

Hello @bcheidemann👋,
The error appears to be related to specifying nightly as the node-version input in your workflow. While using the setup-node action, nightly alone is not recognised as a valid input. The recommended approach is to use formats such as ‘24-nightly’, ‘24.0.0-nightly’, or a full nightly build identifier, for example ‘24.0.0-nightly202505066102159fa1’.

For further details and a list of supported input formats, please refer to the official documentation: setup-node#nightly-versions.
Kindly update your workflow file using one of the suggested formats. If you need any additional assistance, please feel free to reach out. Thank you!