AsyncTask giving error at runInBackground

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http://stackoverflow.com – I'm trying to do some task using AsyncTask. But when I completed with it. Its is not showing any kind of syntactical error. But while running it is showing the error as in the following image I tried to debug it, but could get what the problem is. Please help JsonParsingActivity.java import java.util.ArrayList; import java.util.HashMap; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import android.app.ListActivity; import android.content.Context; import android.content.Intent; import android.os.AsyncTask; import android.os.Bundle; import android.util (HowTos)