#18346 helm backend should at least WARN (maybe error?) if the user supplied image is not found Issue created by cburroughs Is your feature request related to a problem? Please describe.

$ cat dependencies src/deployment/BUILD 
cat: dependencies: No such file or directory
#Overrides the `image` value for the chart using the target address for the first-party docker image.
helm_deployment(dependencies=["src/chart"],
                sources=["common-values.yaml"],
                values={"image": "src/docker:docker"})
$ cat dependencies src/deployment/BUILD 
cat: dependencies: No such file or directory
#Overrides the `image` value for the chart using the target address for the first-party docker image.
helm_deployment(dependencies=["src/chart"],
                sources=["common-values.yaml"],
                values={"image": "src/docker:whale-typo"})
$ ./pants dependencies src/deployment:deployment
src/chart:chart

😿 Describe the solution you'd like If the user specifically says "use this image", but said image isn't found, pants should warn or error out or something Describe alternatives you've considered Additional context #18345 https://github.com/cburroughs/example-python/tree/17da445368d145f22693f86d4157895609968922 pantsbuild/pants