http://developers.de/blogs/holger_vetter/archive/2016/11/18/how-to-identify-swagger-errors.aspxLast week I had the problem that Swagger wasn't working. It just showed an HttpStatusCode 500 and in Visual Studio there wasn't any exception. To identify the error I had to activate the 'DeveloperExceptionPage' in the Configure methodenCommunityServer 2008 SP1 (Build: 30619.63)