java.lang.NullPointerException: Attempt to invoke virtual method 'com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential.setSelectedAccountName(java.lang.String)' on a null object reference

Stack Overflow | Sagar_Koli | 3 months ago
  1. 0

    I am not able to pass any object data in GoogleAccountCredential while syncing & creating events with Google Calendar API

    Stack Overflow | 3 months ago | Sagar_Koli
    java.lang.NullPointerException: Attempt to invoke virtual method 'com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential.setSelectedAccountName(java.lang.String)' on a null object reference
  2. 0

    java.lang.RuntimeException: Unable to stop 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 | 7 months ago | dmsherazi
    java.lang.RuntimeException: Unable to stop 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
  3. 0

    GitHub comment 199#204448212

    GitHub | 8 months ago | pranay-mathur
    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String org.json.JSONObject.optString(java.lang.String, java.lang.String)' on a null object reference
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  5. 0

    Null Object Reference on db insert

    Stack Overflow | 1 year ago | neo
    java.lang.NullPointerException: Attempt to invoke virtual method 'void com.example.test.myapp.DBHelper.addListItem(java.lang.String, java.lang.String, java.lang.String)' on a null object reference
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    NPE and InvocationTargetException error

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

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential.setSelectedAccountName(java.lang.String)' on a null object reference

      at com.facetleon.ridhamsagar.ivaccine.RegisterFragment$CalendarAsyncTask.doInBackground()
    2. com.facetleon.ridhamsagar
      RegisterFragment$3.onClick
      1. com.facetleon.ridhamsagar.ivaccine.RegisterFragment$CalendarAsyncTask.doInBackground(RegisterFragment.java:924)
      2. com.facetleon.ridhamsagar.ivaccine.RegisterFragment.calculateDates(RegisterFragment.java:289)
      3. com.facetleon.ridhamsagar.ivaccine.RegisterFragment$3.onClick(RegisterFragment.java:203)
      3 frames
    3. Android Platform
      ActivityThread.main
      1. android.view.View.performClick(View.java:5198)
      2. android.view.View$PerformClick.run(View.java:21147)
      3. android.os.Handler.handleCallback(Handler.java:739)
      4. android.os.Handler.dispatchMessage(Handler.java:95)
      5. android.os.Looper.loop(Looper.java:148)
      6. android.app.ActivityThread.main(ActivityThread.java:5417)
      6 frames
    4. Java RT
      Method.invoke
      1. java.lang.reflect.Method.invoke(Native Method)
      1 frame
    5. Android
      ZygoteInit.main
      1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
      2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
      2 frames