java.lang.NullPointerException

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    • java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setText(int)' on a null object reference at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4156) at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4250) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3361) at android.app.ActivityThread.access$1100(ActivityThread.java:222) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1795) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:158) at android.app.ActivityThread.main(ActivityThread.java:7229) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120) Caused by: 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(MainActivity.java:203) at com.test.app.MainActivity.onResume(MainActivity.java:307) at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1286) at android.app.Activity.performResume(Activity.java:6987) at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4145)
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