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How to solve FATAL EXCEPTION java.lang.RuntimeException: An error occurred while doing doInBackground ()

I am developing a chat related to a similar application. I am using backgrouund synchronous class. Forced closing appears several times. I am using .net webservices back ground. I get a message about updating the process of loading images and images. ui

error:

05-17 05:24:17.925: ERROR/AndroidRuntime(1618): FATAL EXCEPTION: AsyncTask #1
05-17 05:24:17.925: ERROR/AndroidRuntime(1618): java.lang.RuntimeException: An error occured while executing doInBackground()
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at android.os.AsyncTask$3.done(AsyncTask.java:200)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.concurrent.FutureTask.run(FutureTask.java:137)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.lang.Thread.run(Thread.java:1096)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618): Caused by: java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:257)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.ArrayList.get(ArrayList.java:311)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at com.fitzgeraldsoftware.shout.presentationLayer.Shout$LatestMessage.doInBackground(Shout.java:1923)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at android.os.AsyncTask$2.call(AsyncTask.java:185)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     ... 4 more
05-17 05:24:17.956: WARN/ActivityManager(1105):   Force finishing activity com.fitzgeraldsoftware.shout.presentationLayer/.Shout
05-17 05:24:18.097: WARN/IInputConnectionWrapper(1618): showStatusIcon on inactive InputConnection
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3 answers

You have one ArrayIndexOutOfBoundsException. Check out the code executed in 1923 Shout.javato access the array. An exception is thrown if you try to read an element at an index that is larger than the size of the array (1). For example, it is called if:

String [] strings = new String[0];
strings[0];// exception thrown!
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, , , /, . .

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Try Project -> Cleanit and then run ... I decided it like this ........

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