Path Validation Error: Path(s) specified in the action for caching do(es) not exist, hence no cache is being saved.

[simplenotezy]

I notice the following error message post run:

Path Validation Error: Path(s) specified in the action for caching do(es) not exist, hence no cache is being saved.

Not sure if it's relevant; it does seem to save some cache after all.

[rolandmosimann]

@simplenotezy I had the same problem, so I removed the pub-cache-path: "${{ runner.tool_cache }}/flutter/:channel:-:version:-:arch:" # optional, change this to specify the cache path and it worked. Maybe worth trying.

[qchau97]

I'm also having this issue. The workflow has been working fine with pub-cache-path: "${{ runner.tool_cache }}/flutter/:channel:-:version:-:arch:" and suddenly one day it's broken. Removing this line works but it really bothers me what is the real cause for this.