java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.crashapp/com.example.crashapp.MainActivity}: java.lang.NullPointerException

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Solutions on the web

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Unable to start activity ComponentInfo{com.example.crashapp/com.example.crashapp.MainActivity}: java.lang.NullPointerException
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Unable to start activity ComponentInfo{com.ints.elmerpro/com.mlsdev.rximagepicker.HiddenActivity}: java.lang.NullPointerException: file
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Unable to start activity ComponentInfo{com.botlink.app/dji.sdk.sdkmanager.DJIAoaControllerActivity}: java.lang.NullPointerException
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.crashapp/com.example.crashapp.MainActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3319)

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