java.lang.RuntimeException: Unable to start activity ComponentInfo{com.asad.android.canieatthis/com.asad.android.canieatthis.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.asad.android.canieatthis.Food.getUpc()' on a null object reference

Stack Overflow | Asad Aizaz | 3 months ago
  1. 0

    Output works while debugging but returns with runtime error when running

    Stack Overflow | 3 months ago | Asad Aizaz
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.asad.android.canieatthis/com.asad.android.canieatthis.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.asad.android.canieatthis.Food.getUpc()' on a null object reference
  2. 0

    NPE and InvocationTargetException error

    Stack Overflow | 2 years ago | user2883071
    java.lang.IllegalStateException: Could not execute method of the activity
  3. 0

    java.lang.RuntimeException: Unable to resume activity {net.kindows.chitchat/net.kindows.chitchat.LoginActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void org.eclipse.paho.android.service.MqttService.disconnect(java.lang.String, java.lang.String, java.lang.String)' on a null object reference

    GitHub | 6 months ago | dmsherazi
    java.lang.RuntimeException: Unable to resume activity {net.kindows.chitchat/net.kindows.chitchat.LoginActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void org.eclipse.paho.android.service.MqttService.disconnect(java.lang.String, java.lang.String, java.lang.String)' on a null object reference
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    Deleting or updating an entry in an SQLite database in Android

    Stack Overflow | 3 months ago | Nick Inman
    java.lang.NullPointerException: Attempt to invoke virtual method 'int android.database.sqlite.SQLiteDatabase.delete(java.lang.String, java.lang.String, java.lang.String[])' on a null object reference
  6. 0

    my sqlite insertion issue

    Stack Overflow | 10 months ago | Sanan.Durani
    java.lang.NullPointerException: Attempt to invoke virtual method 'boolean com.example.ks.doit.sqlite_database.insertStudentData(java.lang.String, java.lang.String, java.lang.String)' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'java.lang.String com.asad.android.canieatthis.Food.getUpc()' on a null object reference

      at com.asad.android.canieatthis.MainActivity.onCreate()
    2. com.asad.android
      MainActivity.onCreate
      1. com.asad.android.canieatthis.MainActivity.onCreate(MainActivity.java:62)
      1 frame
    3. Android Platform
      ActivityThread.performLaunchActivity
      1. android.app.Activity.performCreate(Activity.java:6876)
      2. android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1135)
      3. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3207)
      3 frames