java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ibm.watson.developer_cloud.android.examples/com.ibm.watson.developer_cloud.android.examples.MainActivity}: java.lang.NullPointerException: Attempt to invoke interface method 'int java.util.List.size()' on a null object reference

Stack Overflow | skbrhmn | 5 months ago
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    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ibm.watson.developer_cloud.android.examples/com.ibm.watson.developer_cloud.android.examples.MainActivity}: java.lang.NullPointerException: Attempt to invoke interface method 'int java.util.List.size()' on a null object reference
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    Stack Overflow | 5 months ago | skbrhmn
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ibm.watson.developer_cloud.android.examples/com.ibm.watson.developer_cloud.android.examples.MainActivity}: java.lang.NullPointerException: Attempt to invoke interface method 'int java.util.List.size()' on a null object reference
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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke interface method 'int java.util.List.size()' on a null object reference

      at android.widget.ArrayAdapter.getCount()
    2. Android Platform
      Spinner.setAdapter
      1. android.widget.ArrayAdapter.getCount(ArrayAdapter.java:337)
      2. android.widget.AbsSpinner.setAdapter(AbsSpinner.java:115)
      3. android.widget.Spinner.setAdapter(Spinner.java:554)
      3 frames
    3. com.ibm.watson
      MainActivity$FragmentTabSTT.onCreateView
      1. com.ibm.watson.developer_cloud.android.examples.MainActivity$FragmentTabSTT.addItemsOnSpinnerModels(MainActivity.java:566)
      2. com.ibm.watson.developer_cloud.android.examples.MainActivity$FragmentTabSTT.onCreateView(MainActivity.java:190)
      2 frames
    4. Android Platform
      ActivityThread.performLaunchActivity
      1. android.app.Fragment.performCreateView(Fragment.java:2281)
      2. android.app.FragmentManagerImpl.moveToState(FragmentManager.java:983)
      3. android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1163)
      4. android.app.BackStackRecord.run(BackStackRecord.java:793)
      5. android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1552)
      6. android.app.FragmentController.execPendingActions(FragmentController.java:325)
      7. android.app.Activity.performStart(Activity.java:6914)
      8. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3217)
      8 frames