This error message could be improved to give examples of how to resolve it. An example of the output might look like
Warning: Among the 1 possible responses, there was no successful one.
at /vats/{id} -> GET
at /tenants/{id} -> GET
at /tenants -> GET
Make sure your spec defines a 2XX and/or 3XX response for these endpoints.
https://github.com/wolfadex/elm-open-api-cli/blob/3b16258eca6c6d5f1a91d62d5bcf0fef1bd9edc2/src/OpenApi/Generate.elm#L2159-L2162
This error message could be improved to give examples of how to resolve it. An example of the output might look like