Service methods cannot return void. retrofit

Question

This is my method in Interface. I am calling this function but app crash with this exception:

Caused by: java.lang.IllegalArgumentException: Service m

Answer 1

Based on your classes, it looks like you are using Retrofit 2.0.0, which is currently in beta. I think using a void in your service method is no longer allowed. Instead, return Call, which you can enqueue to perform the network call asynchronously.

Alternatively, drop your library down to Retrofit 1.9.0 and replace your Retrofit class with RestAdapter.