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 Coderanch by simone giusti, 1 year ago
An error occurred while executing doInBackground()
via GitHub by billmeek
, 11 months ago
An error occurred while executing doInBackground()
via GitHub by Neamar
, 11 months ago
An error occurred while executing doInBackground()
via GitHub by sarvajeet294
, 6 months ago
An error occurred while executing doInBackground()
via GitHub by Madis0
, 7 months ago
An error occurred while executing doInBackground()
via GitHub by Lineflyer
, 5 months ago
An error occurred while executing doInBackground()
java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
at android.os.Handler.(Handler.java:200)
at android.os.Handler.(Handler.java:114)
at android.widget.Toast$TN.(Toast.java:345)
at android.widget.Toast.(Toast.java:101)
at android.widget.Toast.makeText(Toast.java:259)
at com.pehchan.nic.pehchan.OtpActivity$propdetail1.doInBackground(OtpActivity.java:234)
at com.pehchan.nic.pehchan.OtpActivity$propdetail1.doInBackground(OtpActivity.java:168)
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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