java.lang.RuntimeException

Unable to start activity ComponentInfo{com.example.gles20/com.example.gles20.GLES20Activity}: java.lang.NullPointerException

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  • Stack trace

    • java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.gles20/com.example.gles20.GLES20Activity}: java.lang.NullPointerException at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261) at android.app.ActivityThread.access$600(ActivityThread.java:141) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:5103) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:525) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.NullPointerException at android.view.ViewGroup.addViewInner(ViewGroup.java:3505) at android.view.ViewGroup.addView(ViewGroup.java:3377) at android.view.ViewGroup.addView(ViewGroup.java:3353) at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:286) at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:276) at android.app.Activity.setContentView(Activity.java:1915) at com.example.gles20.GLES20Activity.onCreate(GLES20Activity.java:36) at android.app.Activity.performCreate(Activity.java:5133) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175)

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