Swagger: Service operations are not found

I’m getting the Error "Service operations are not found" when I try to save a swagger.json file in the Service Editor.

In the Output-Panel I’m getting the following error message:

CompilerBuilder.Compile: Cannot implicitly convert type ‘System.Collections.ObjectModel.Collection<System.Collections.ObjectModel.Collection>’ to ‘System.Collections.Generic.ICollection<System.Collections.Generic.ICollection>’. An explicit conversion exists (are you missing a cast?)

This happens for every Operation.

Can you or anybody tell if I’m doing something wrong here?

Kind regards

As far as I know, the problem is with – (hyphen or minus: now fixed) and _ (underscore: not yet fixed) - is that of any help?

Since the error also happens with Endpoints with no - or _, unfortunately not.