Error: Action has more than one parameter bound from request body

Question

I wrote a new method into my Controller of my ASP.Net MVC project and getting error below. I think InvalidOperationException coming from with Swagger. I marked

Answer 1

For me in the definition of the a new controller automatically add this prerequisite.
I removed it and it works

[Route("api/[controller]")]
[Apicontroller] //remove this line