swagger .net core API ambiguous HTTP Action debugging

Question

Implementing Swashbuckle/Swagger with .net Core 2 API I am now receiving the 500 error when accessing swagger.json:

NotSupportedException: Ambiguous HTTP

Answer 1

Similar to totonho's answer you can use

[ApiExplorerSettings(IgnoreApi=true)]

(From https://github.com/domaindrivendev/Swashbuckle/issues/153 )