I am using free version of ABP. I create a service class in .Application layer. When I call any of that service method, getting this error.
hi
I think you need set up the API clients.
Please see
https://docs.abp.io/en/abp/latest/API/Dynamic-CSharp-API-Clients https://docs.abp.io/en/abp/latest/API/Static-CSharp-API-Clients