SwaggerODataSample throws Exception when accessing V1, V2 and V3

[andenkondor]

Hi,

I'm currently on v5.0.0 and can't access the swagger docs for every version greater than 0.9.
Here is what the log is telling me:

Swashbuckle.AspNetCore.SwaggerGen.SwaggerGeneratorException: Failed to generate Operation for action - Microsoft.Examples.V1.OrdersController.Post (SwaggerODataSample). See inner exception ---> Swashbuckle.AspNetCore.SwaggerGen.SwaggerGeneratorException: Failed to generate schema for type - Microsoft.Examples.Models.Order. See inner exception ---> System.InvalidOperationException: Can't use schemaId "$Order" for type "$Microsoft.Examples.Models.Order". The same schemaId is already used for type "$Microsoft.Examples.Models.Order" at Swashbuckle.AspNetCore.SwaggerGen.SchemaRepository.RegisterType(Type type, String schemaId)

[Janus88]

Hi,

I encountered the same problem. As a workaround, downgrading Swashbuckle.AspNetCore Nuget package to 5.6.3 helped.

[necipsunmaz]

I found the solution but couldn't find the cause.

services.AddSwaggerGen(opt =>
{
   ...
   opt.CustomSchemaIds(type => type.ToString() + type.GetHashCode()); // This helped me
   ...
});

[commonsensesoftware]

I've discovered that this specific issue is a bug in Swashbuckle. Updating to the latest release should fix this. You might, however, run into other issues related to route template generation (not model generation). Peek at the updated sample in this branch. That may address them until the next patch is released.