App getting force closed

[mssaravanan]

05-31 15:38:50.877 24942-25015/iammert.com.androidarchitecture E/AndroidRuntime: FATAL EXCEPTION: AsyncTask #1 Process: iammert.com.androidarchitecture, PID: 24942 java.lang.RuntimeException: An error occured while executing doInBackground() at android.os.AsyncTask$3.done(AsyncTask.java:304) at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355) at java.util.concurrent.FutureTask.setException(FutureTask.java:222) at java.util.concurrent.FutureTask.run(FutureTask.java:242) at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) at java.lang.Thread.run(Thread.java:818) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.util.List iammert.com.androidarchitecture.data.remote.model.MoviesResponse.getResults()' on a null object reference at iammert.com.androidarchitecture.data.MovieRepository$1.saveCallResult(MovieRepository.java:36) at iammert.com.androidarchitecture.data.MovieRepository$1.saveCallResult(MovieRepository.java:32) at iammert.com.androidarchitecture.data.NetworkBoundResource$2.doInBackground(NetworkBoundResource.java:71) at iammert.com.androidarchitecture.data.NetworkBoundResource$2.doInBackground(NetworkBoundResource.java:67) at android.os.AsyncTask$2.call(AsyncTask.java:292) at java.util.concurrent.FutureTask.run(FutureTask.java:237) at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)  at java.lang.Thread.run(Thread.java:818) 

[iammert]

You need to get an API key from https://www.themoviedb.org/settings/api and paste it ApiConstant class. @saran2somu