Confusing "Image is not used" warning

[sergeykad]

Expected behavior

When there is an error substituting image configuration Skaffold will provide useful information about what went wrong.

Actual behavior

Only the following information is provided regarding the problem, even after enabling trace level logging

WARN[0003] image [docker.server.com:5000/my-service:519e2dec4d1729496236eec9f3ccae7cefb7f5da1dc3fcf79f54e0935f82f761] is not used.  subtask=-1 task=DevLoop
WARN[0003] See helm documentation on how to replace image names with their actual tags: https://skaffold.dev/docs/pipeline-stages/deployers/helm/#image-configuration  subtask=-1 task=DevLoop

While the document is comprehensive, it also explains multiple cases influenced by a number of external parameters. It's quite hard to guess the correct configuration without getting any constructive feedback on the error.

From my observations switching from chartPath to remoteChart can also lead to this error although it is not mentioned in the documentation.

Information

• Skaffold version: 2.12.0
• Operating system: Ubuntu 22.04.4
• Installed via: curl -Lo skaffold https://storage.googleapis.com/skaffold/releases/latest/skaffold-linux-amd64 && \ sudo install skaffold /usr/local/bin/