<android.support.design.button.MaterialButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="3dp"
            android:onClick="onClick"
            android:text="Button" />

E/AndroidRuntime: FATAL EXCEPTION: main
                  Process: com.example.iamusing5530.myapplication, PID: 22085
                  java.lang.IllegalStateException: Could not find a method onClick(View) in the activity class android.support.v7.widget.TintContextWrapper for onClick handler on view class android.support.design.button.MaterialButton
                      at android.view.View$1.onClick(View.java:3841)
                      at android.view.View.performClick(View.java:4469)
                      at android.view.View$PerformClick.run(View.java:18788)
                      at android.os.Handler.handleCallback(Handler.java:808)
                      at android.os.Handler.dispatchMessage(Handler.java:103)
                      at android.os.Looper.loop(Looper.java:193)
                      at android.app.ActivityThread.main(ActivityThread.java:5328)
                      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:838)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:654)
                      at dalvik.system.NativeStart.main(Native Method)
                   Caused by: java.lang.NoSuchMethodException: onClick [class android.view.View]
                      at java.lang.Class.getConstructorOrMethod(Class.java:472)
                      at java.lang.Class.getMethod(Class.java:864)
                      at android.view.View$1.onClick(View.java:3834)
                      at android.view.View.performClick(View.java:4469)
                      at android.view.View$PerformClick.run(View.java:18788)
                      at android.os.Handler.handleCallback(Handler.java:808)
                      at android.os.Handler.dispatchMessage(Handler.java:103)
                      at android.os.Looper.loop(Looper.java:193)
                      at android.app.ActivityThread.main(ActivityThread.java:5328)
                      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:838)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:654)
                      at dalvik.system.NativeStart.main(Native Method)
I/Process: Sending signal. PID: 22085 SIG: 9
Disconnected from the target VM, address: 'localhost:8635', transport: 'socket'