java.lang.RuntimeException: An error occured 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 srvrguy
, 1 year ago
An error occured while executing doInBackground()
via GitHub by guimellon
, 10 months ago
An error occured while executing doInBackground()
via GitHub by volcano99
, 1 year ago
An error occured while executing doInBackground()
via GitHub by atulagrwl
, 2 years ago
An error occured while executing doInBackground()
via GitHub by atulagrwl
, 2 years ago
An error occured while executing doInBackground()
via GitHub by justincpollard
, 3 months ago
An error occured while executing doInBackground()
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.Handler.(Handler.java:121)
at android.widget.Toast$TN.(Toast.java:361)
at android.widget.Toast.(Toast.java:97)
at android.widget.Toast.makeText(Toast.java:254)
at android.widget.Toast.makeText(Toast.java:304)
at com.nextgis.maplibui.util.LayerUtil$ExportGeoJSONTask.doInBackground(LayerUtil.java:208)
at com.nextgis.maplibui.util.LayerUtil$ExportGeoJSONTask.doInBackground(LayerUtil.java:113)
at android.os.AsyncTask$2.call(AsyncTask.java:287)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
at java.util.concurrent.FutureTask.run(FutureTask.java:137)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
at java.lang.Thread.run(Thread.java:856)

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