java.lang.RuntimeException

If you like a tip written by other Samebug users, mark is as helpful! Marks help our algorithm provide you better solutions and also help other users.
tip

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.

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

  • App is crashing in Android 6.0
    via GitHub by vivekkiran
    ,
  • Android 6
    via GitHub by alhdo
    ,
  • Runtime Exception
    via GitHub by drojokef
    ,
  • GitHub comment 1#172433222
    via GitHub by awadeyar
    ,
    • java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare() at android.os.Handler.<init>(Handler.java:200) at android.os.Handler.<init>(Handler.java:114) at android.app.Dialog.<init>(Dialog.java:119) at android.app.Dialog.<init>(Dialog.java:168) at android.support.v7.app.AppCompatDialog.<init>(AppCompatDialog.java:43) at android.support.v7.app.AlertDialog.<init>(AlertDialog.java:95) at android.support.v7.app.AlertDialog$Builder.create(AlertDialog.java:927) at android.support.v7.app.AlertDialog$Builder.show(AlertDialog.java:952)

    Users with the same issue

    mrokay97mrokay97
    5 times, last one,
    dmitrydmitry
    1 times, last one,
    Hiren AmaliyarHiren Amaliyar
    14 times, last one,
    winer222winer222
    288 times, last one,
    filpgamefilpgame
    128 times, last one,
    35 more bugmates