Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Samebug tips

  1. ,
    via vogella.com by Unknown author

    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.

Solutions on the web

via GitHub by drojokef
, 1 year ago
Can't create handler inside thread that has not called Looper.prepare()
via GitHub by alhdo
, 1 year ago
Can't create handler inside thread that has not called Looper.prepare()
via GitHub by vi
, 1 year ago
Can't create handler inside thread that has not called Looper.prepare()
via Stack Overflow by user1851366
, 1 year ago
Can't create handler inside thread that has not called Looper.prepare()
via Stack Overflow by Sharmila Shankar
, 1 year ago
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:130) at android.app.Dialog.<init>(Dialog.java:180) 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$Builder.create(AlertDialog.java:927) at pl.hypeapp.endoscope.StartStreamActivity.logError(StartStreamActivity.java:224) at pl.hypeapp.endoscope.StartStreamActivity.onError(StartStreamActivity.java:168) at net.majorkernelpanic.streaming.rtsp.RtspServer.postError(RtspServer.java:300) at net.majorkernelpanic.streaming.rtsp.RtspServer$WorkerThread.run(RtspServer.java:410)