yarn workspaces foreach doesn't work with Github Actions, how should the problem be raised?

[SmileyJames]

This foreach command normally executes a number of tests in the mono repo. When running on Github Actons, only one test runs:

5s
Run yarn workspaces foreach run test
➤ YN0000: ➤ YN0000: (node:1859) [MODULE_NOT_FOUND] Error: debug tried to access supports-color (a peer dependency) but it isn't provided by its ancestors; this makes the require call ambiguous and unsound.
➤ YN0000: ➤ YN0000: (Use `node --trace-warnings ...` to show where the warning was created)
➤ YN0000: ➤ YN0000: PASS src/index.test.js
➤ YN0000: ➤ YN0000:   ✓ pass (1 ms)
➤ YN0000: ➤ YN0000: 
➤ YN0000: ➤ YN0000: Test Suites: 1 passed, 1 total
➤ YN0000: ➤ YN0000: Tests:       1 passed, 1 total
➤ YN0000: ➤ YN0000: Snapshots:   0 total
➤ YN0000: ➤ YN0000: Time:        1.981 s
➤ YN0000: ➤ YN0000: Ran all test suites.

Searching Google and Github issues for people with similiar issues has not yielded results.

However, the yarn mono repo uses Github actions and does not use yarn workspaces foreach, instead opting for a long list of packages hardcoded to the build script

Everything works well for me locally (on MacOS, the GH Actions are running on Ubuntu) so I am unsure how to raise the issue. It's not clear to me if this is a problem with yarn workspace-tools source code or more of an integration issue with GH actions.

[merceyz]

If I were to guess your CI is using Node 15 and you're not. There is a bug with Node 15 and Yarn that is fixed in master so you can try yarn set version from sources, make sure to import any plugins you use from sources as well.

https://yarnpkg.com/cli/set/version/from/sources
https://yarnpkg.com/cli/plugin/import/from/sources

[SmileyJames]

Ahh, that would explain it. Using 14 locally and 15 on CI. Thank you 😃