Error running the action - missing environment variables?

[mark-hingston]

I have the following job in a workflow:

- name: Merge reports
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          sudo npx ctrf merge reports --output merged-report.json
          sudo npx github-actions-ctrf reports/merged-report.json

When the job executes I see the following output:

npm warn exec The following package was not found and will be installed: ctrf@0.0.10
Merging CTRF reports...
Found file: chromium
Found file: results-74ed3e1d-b50a-4455-8ccb-462ec15619e1.json
Found file: results-bc4367a5-6369-469a-aa87-d33c19e4cd3d.json
Found file: results-e1eb8a74-973c-4c9e-8a28-012b911834a6.json
Found file: results-f24cf585-0ee3-4145-99b8-70617de23c03.json
Skipping non-CTRF file: chromium
Merging report: results-74ed3e1d-b50a-4455-8ccb-462ec15619e1.json
Merging report: results-bc4367a5-6369-469a-aa87-d33c19e4cd3d.json
Merging report: results-e1eb8a74-973c-4c9e-8a28-012b911834a6.json
Merging report: results-f24cf585-0ee3-4145-99b8-70617de23c03.json
CTRF reports merged successfully.
Merged report saved to: /home/runner/work/myrepo/reports/merged-report.json
npm warn exec The following package was not found and will be installed: github-actions-ctrf@0.0.50
/root/.npm/_npx/4b5f679370b5c525/node_modules/@actions/core/lib/summary.js:35
                throw new Error(`Unable to find environment variable for $${exports.SUMMARY_ENV_VAR}. Check if your runtime environment supports job summaries.`);
                      ^
Error: Unable to find environment variable for $GITHUB_STEP_SUMMARY. Check if your runtime environment supports job summaries.
    at Summary.<anonymous> (/root/.npm/_npx/4b5f679370b5c525/node_modules/@actions/core/lib/summary.js:35:23)
    at Generator.next (<anonymous>)
    at /root/.npm/_npx/4b5f679370b5c525/node_modules/@actions/core/lib/summary.js:8:71
    at new Promise (<anonymous>)
    at __awaiter (/root/.npm/_npx/4b5f679370b5c525/node_modules/@actions/core/lib/summary.js:4:12)
    at Summary.filePath (/root/.npm/_npx/4b5f679370b5c525/node_modules/@actions/core/lib/summary.js:29:16)
    at Summary.<anonymous> (/root/.npm/_npx/4b5f679370b5c525/node_modules/@actions/core/lib/summary.js:75:41)
    at Generator.next (<anonymous>)
    at /root/.npm/_npx/4b5f679370b5c525/node_modules/@actions/core/lib/summary.js:8:71
    at new Promise (<anonymous>)
Node.js v18.20.5

[Ma11hewThomas]

Hi @mark-hingston,

Your environment may not support job summaries.

In a GitHub Action, the GITHUB_STEP_SUMMARY environment variable is automatically set by the GitHub runner and should be available. However, if your script is running outside of a GitHub Actions runner (e.g., locally or in a custom environment), this variable won’t be set.

If you’re using GitHub Enterprise, I believe job summaries are supported starting from version 3.6.

If neither of these cases applies, consider echoing the value of $GITHUB_STEP_SUMMARY to verify if it’s set, or explicitly set it to an empty value just before running the CTRF reporter.