java.lang.RuntimeException: Unable to start activity ComponentInfo{ir.naserpour.ketabsara/ir.naserpour.ketabsara.MainActivity}: java.lang.NullPointerException

Stack Overflow | M. Naserpour | 5 months ago
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    problems using volley library

    Stack Overflow | 5 months ago | M. Naserpour
    java.lang.RuntimeException: Unable to start activity ComponentInfo{ir.naserpour.ketabsara/ir.naserpour.ketabsara.MainActivity}: java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at ir.naserpour.ketabsara.MainActivity.onCreate()
    2. ir.naserpour.ketabsara
      MainActivity.onCreate
      1. ir.naserpour.ketabsara.MainActivity.onCreate(MainActivity.java:89)
      1 frame
    3. Android Platform
      ActivityThread.performLaunchActivity
      1. android.app.Activity.performCreate(Activity.java:5280)
      2. android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
      3. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2239)
      3 frames