Tutorial Android Insert data MySQL dengan Retrofit (CRUD Online Bagian 1)65757SulistiyantoR Rifa Fauzi KomaraFollowJul 24, 2017 · 1 min readFATAL EXCEPTION: main Process: com.example.alvionnieta.mahasiswa, PID: 4056 java.lang.NullPointerException: Attempt to invoke virtual method ‘java.lang.String com.example.alvionnieta.mahasiswa.Value.getValue()’ on a null object reference at com.example.alvionnieta.mahasiswa.MainActivity$1.onResponse(MainActivity.java:70)terus yg error itu ada di →@Overridepublic void onResponse(Call<Value> call, Response<Value> response) { String value = response.body().getValue(); String message = response.body().getMessage(); progress.dismiss(); if (value.equals(“1”)) { Toast.makeText(MainActivity.this, message, Toast.LENGTH_SHORT).show(); } else { Toast.makeText(MainActivity.this, message, Toast.LENGTH_SHORT).show(); }}Kasih pencerahan mas mengenai errornya..