java.lang.RuntimeException

Unable to start activity ComponentInfo{com.stack.overflow/com.stack.overflow.reviewmaschine.gallery.GalleryActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference

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Solutions on the web45858

  • Unable to start activity ComponentInfo{com.stack.overflow/com.stack.overflow.reviewmaschine.gallery.GalleryActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference
  • Unable to start activity ComponentInfo{com.thrivecom.ringcaptcha.OnboardActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference
  • Unable to start activity ComponentInfo{thyroid.com.thyroid/thyroid.com.thyroid.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference
  • Stack trace

    • java.lang.RuntimeException: Unable to start activity ComponentInfo{com.stack.overflow/com.stack.overflow.reviewmaschine.gallery.GalleryActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)

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