Error: No package.json file found in the action directory or any parent directories.

[Whelch]

I believe v3 introduced this issue from this line here, which doesn't appear to be referencing the folders array when recursively trying to find the package.json

[ncalteen]

Ah, my mistake on that. I just pushed a new patch update (v3.1.1) that should resolve this! Please test it out and let me know if this fixes the issue.