java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setText(int)' on a null object reference

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    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setText(int)' on a null object reference
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    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setText(int)' on a null object reference
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    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setText(int)' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'void android.widget.TextView.setText(int)' on a null object reference

      at com.test.app.MainActivity.signInOutText()
    2. com.test.app
      MainActivity.onResume
      1. com.test.app.MainActivity.signInOutText(MainActivity.java:203)
      2. com.test.app.MainActivity.onResume(MainActivity.java:307)
      2 frames
    3. Android Platform
      ActivityThread.performResumeActivity
      1. android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1286)
      2. android.app.Activity.performResume(Activity.java:6987)
      3. android.app.ActivityThread.performResumeActivity(ActivityThread.java:4145)
      3 frames