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

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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
, 1 year 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.NullPointerException: Attempt to invoke virtual method 'int org.json.JSONArray.length()' on a null object reference
at com.example.ashis.booklisting.QueryUtils.extractFromJson(QueryUtils.java:69)
at com.example.ashis.booklisting.QueryUtils.fetchBookData(QueryUtils.java:38)
at com.example.ashis.booklisting.MainActivity$BookAsyncTask.doInBackground(MainActivity.java:58)
at com.example.ashis.booklisting.MainActivity$BookAsyncTask.doInBackground(MainActivity.java:51)
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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