java.lang.RuntimeException: An error occurred while executing doInBackground()

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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 Oupsla
, 11 months ago
An error occurred while executing doInBackground()
via GitHub by inakianduaga
, 6 months ago
An error occurred while executing doInBackground()
via GitHub by philipwhiuk
, 1 year ago
An error occurred while executing doInBackground()
via GitHub by toyotabedzrock
, 2 years ago
An error occurred while executing doInBackground()
via GitHub by ltGuillaume
, 2 years ago
An error occurred while executing > doInBackground()
via GitHub by lognaturel
, 9 months ago
An error occurred while executing doInBackground()
java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.Handler.(Handler.java:200)
at android.os.Handler.(Handler.java:114)
at android.widget.Toast$TN.(Toast.java:345)
at android.widget.Toast.(Toast.java:101)
at android.widget.Toast.makeText(Toast.java:259)
at com.it.legalapps.proviser.CalendarFragment$ApiSimulator.doInBackground(CalendarFragment.java:315)
at com.it.legalapps.proviser.CalendarFragment$ApiSimulator.doInBackground(CalendarFragment.java:291)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)

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