An error occurred while executing doInBackground()

Samebug tips1

Any worker thread runs in background, since it is not intended to loop, is not connected to a Looper.for example doInBackground(). its implementation returns will be passed to onPostExecute() which runs on the UI thread.

Don't give up yet. Our experts can help. Paste your full stack trace to get a solution.

Solutions on the web465

Stack trace

  • java.lang.RuntimeException: An error occurred while executing doInBackground() at android.os.AsyncTask$3.done( at java.util.concurrent.FutureTask.finishCompletion( at java.util.concurrent.FutureTask.setException( at at android.os.AsyncTask$SerialExecutor$ at java.util.concurrent.ThreadPoolExecutor.runWorker( at java.util.concurrent.ThreadPoolExecutor$ at Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare() at android.os.Handler.<init>( at android.os.Handler.<init>( at android.widget.Toast$TN.<init>( at android.widget.Toast.<init>( at android.widget.Toast.makeText( at com.pehchan.nic.pehchan.OtpActivity$propdetail1.doInBackground( at com.pehchan.nic.pehchan.OtpActivity$propdetail1.doInBackground( at android.os.AsyncTask$ at ... 4 more

Write tip

You have a different solution? A short tip here would help you and many other users who saw this issue last week.

Users with the same issue

4 times, last one
6 times, last one
Hiren AmaliyarHiren Amaliyar
14 times, last one
Indri YunitaIndri Yunita
11 times, last one
10 times, last one
35 more bugmates