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[GH-ISSUE #315] ReferenceError with variables having dash in their name #222

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opened 2026-03-01 21:41:27 +03:00 by kerem · 3 comments

kerem commented

2026-03-01 21:41:27 +03:00

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Originally created by @ssbarnea on GitHub (Jul 23, 2020).
Original GitHub issue: https://github.com/nektos/act/issues/315

level=error msg="Unable to interpolate string 'py${{ matrix.python-version }}@${{ matrix.os }}' - [ReferenceError: 'version' is not defined]"

python-version is defined at matrix level and has special meaning for github so there is no way to change that.

Based on the error, I suspect that the parser is broken as it ends up looking for version.

Originally created by @ssbarnea on GitHub (Jul 23, 2020). Original GitHub issue: https://github.com/nektos/act/issues/315 ``` level=error msg="Unable to interpolate string 'py${{ matrix.python-version }}@${{ matrix.os }}' - [ReferenceError: 'version' is not defined]" ``` `python-version` is defined at matrix level and has special meaning for github so there is no way to change that. Based on the error, I suspect that the parser is broken as it ends up looking for version.

kerem

2026-03-01 21:41:27 +03:00

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kerem commented

2026-03-01 21:41:28 +03:00

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@chrispblink commented on GitHub (Jul 31, 2020):

I'd like to add to this, you can get around this problem by using index syntax (eg matrix["python-version"]) but this is actually invalid syntax and will fail to parse on GitHub Actions. Woops!

Example snippet

      - name: Install kubedog (for log streaming)
        # only install if its not in cache
        if: steps.kubedog_cache.outputs["cache-hit"] == 'false'

The error on GitHub Actions

Invalid workflow file
The workflow is not valid. .github/workflows/issues.yml (Line: 81, Col: 13): Unexpected symbol: '"cache-hit"'. Located at position 29 within expression: steps.kubedog_cache.outputs["cache-hit"] == 'false'

After some quick googling it seems there is a valid index syntax according to the GitHub Actions docs

As part of an expression, you may access context information using one of two syntaxes.

Index syntax: github['sha']

Property dereference syntax: github.sha

@chrispblink commented on GitHub (Jul 31, 2020): I'd like to add to this, you can get around this problem by using index syntax (eg `matrix["python-version"]`) but this is actually invalid syntax and will fail to parse on GitHub Actions. Woops! Example snippet ``` - name: Install kubedog (for log streaming) # only install if its not in cache if: steps.kubedog_cache.outputs["cache-hit"] == 'false' ``` The error on GitHub Actions > **Invalid workflow file** > `The workflow is not valid. .github/workflows/issues.yml (Line: 81, Col: 13): Unexpected symbol: '"cache-hit"'. Located at position 29 within expression: steps.kubedog_cache.outputs["cache-hit"] == 'false'` After some quick googling it seems there _is_ a valid index syntax according to the [GitHub Actions docs](https://docs.github.com/en/actions/reference/context-and-expression-syntax-for-github-actions#contexts) > As part of an expression, you may access context information using one of two syntaxes. > * Index syntax: `github['sha']` > * Property dereference syntax: `github.sha`

kerem commented

2026-03-01 21:41:28 +03:00

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@chrispblink commented on GitHub (Aug 3, 2020):

Well... some poking around the codebase lead me to the previous discussion of this issue (#104) and the already-implemented fix (#287) in master 😅

@chrispblink commented on GitHub (Aug 3, 2020): Well... some poking around the codebase lead me to the previous discussion of this issue (#104) and the already-implemented fix (#287) in master 😅

kerem commented

2026-03-01 21:41:28 +03:00

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@github-actions[bot] commented on GitHub (Oct 3, 2020):

Issue is stale and will be closed in 7 days unless there is new activity

@github-actions[bot] commented on GitHub (Oct 3, 2020): Issue is stale and will be closed in 7 days unless there is new activity

kerem referenced this issue

2026-03-01 21:50:57 +03:00

[PR #222] [MERGED] Normalise Runs.Using to lowercase #1386

kerem referenced this issue

2026-03-01 21:50:57 +03:00

[PR #223] [MERGED] Implement UnmarshalYAML for ActionRunsUsing #1387

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