[GH-ISSUE #171] RUNNER_OS is not defined #112

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opened 2026-03-01 21:40:16 +03:00 by kerem · 1 comment

kerem commented

2026-03-01 21:40:16 +03:00

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Originally created by @djspiewak on GitHub (Mar 26, 2020).
Original GitHub issue: https://github.com/nektos/act/issues/171

It appears that GitHub added the environment variable, RUNNER_OS, as an alias for ${{ runner.os }} sometime quite recently, and a few actions already depend on it (notably olafurpg/setup-scala@v5). Those actions fail within act.

Originally created by @djspiewak on GitHub (Mar 26, 2020). Original GitHub issue: https://github.com/nektos/act/issues/171 It appears that GitHub added the environment variable, `RUNNER_OS`, as an alias for `${{ runner.os }}` sometime quite recently, and a few actions already depend on it (notably `olafurpg/setup-scala@v5`). Those actions fail within `act`.

kerem

2026-03-01 21:40:16 +03:00

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kerem commented

2026-03-01 21:40:17 +03:00

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@cplee commented on GitHub (Apr 23, 2020):

fixed in github.com/nektos/act@a9533b05ce

@cplee commented on GitHub (Apr 23, 2020): fixed in https://github.com/nektos/act/commit/a9533b05ce708a84e931d63cb2cd7b795e70bbe2

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