Error uploading a file using Retrofit 2

Question

I\'m trying to upload a file (picture) to the server using Retrofit 2. I\'m following that tutorial which seems pretty easy at first, but didn\'t work in my case...

Answer 1

The Exceptions says that the first @Part doesn't needs a name in the annotation.

@Multipart
@POST(Constants.URL_UPLOAD)
Call upload(@Part RequestBody description,
                          @Part MultipartBody.Part file);