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

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Root Cause Analysis

  1. java.lang.RuntimeException

    Can't create handler inside thread that has not called Looper.prepare()

    at android.os.Handler.<init>()
  2. Android Platform
    Toast.makeText
    1. android.os.Handler.<init>(Handler.java:200)
    2. android.os.Handler.<init>(Handler.java:114)
    3. android.widget.Toast$TN.<init>(Toast.java:372)
    4. android.widget.Toast.<init>(Toast.java:105)
    5. android.widget.Toast.makeText(Toast.java:264)
    5 frames
  3. com.example.keam
    MainActivity$1readThis.doInBackground
    1. com.example.keam.lastnato.MainActivity$1readThis.doInBackground(MainActivity.java:120)
    2. com.example.keam.lastnato.MainActivity$1readThis.doInBackground(MainActivity.java:61)
    2 frames
  4. Android Platform
    AsyncTask$2.call
    1. android.os.AsyncTask$2.call(AsyncTask.java:288)
    1 frame
  5. Java RT
    FutureTask.run
    1. java.util.concurrent.FutureTask.run(FutureTask.java:237)
    1 frame