java.lang.RuntimeException

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    • java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.dysaniazzz.testdemo/com.example.dysaniazzz.testdemo.MainActivity}: java.lang.ClassCastException: android.support.v7.widget.AppCompatTextView cannot be cast to android.widget.Button at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2215) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2264) at android.app.ActivityThread.access$800(ActivityThread.java:136) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1219) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5032) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.ClassCastException: android.support.v7.widget.AppCompatTextView cannot be cast to android.widget.Button at com.example.dysaniazzz.testdemo.MainActivity.onCreate(MainActivity.java:18) at android.app.Activity.performCreate(Activity.java:5310) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2179)
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