java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $

我假设这是因为.Net Web服务抛出错误而不返回JSON.但为了证明这一点,我需要能够在onFailure中看到原始响应.无论如何我能做到吗？

这是我正在使用的代码

public void userLoginRequestEvent(final AuthenticateUserEvent event) {

Call call = sApi.login(event.getUsername(),event.getPassword(),OS_TYPE,DeviceInfoUtils.getDeviceName());
call.enqueue(new Callback<LoggedInUser>() {
  @Override
  public void onResponse(Response<LoggedInUser> response,Retrofit retrofit) {
    // response.isSuccess() is true if the response code is 2xx

    if (response.isSuccess()) {
      LoggedInUser user = response.body();

      AppBus.getInstance()
              .post(new UserIsAuthenticatedEvent(user,event.getUsername(),event.getPassword()));
    } else {
      int statusCode = response.code();

      // handle request errors yourself
    }
  }

  @Override
  public void onFailure(Throwable t) {
    // handle execution failures like no internet connectivity
    Log.d("ERROR",t.getMessage());
  }


});