11-20 13:43:52.537 17217-17217/com.qiscus.dragonfly E/AndroidRuntime: FATAL EXCEPTION: main
                                                                      Process: com.qiscus.dragonfly, PID: 17217
                                                                      java.lang.IllegalStateException: Could not execute method for android:onClick
                                                                          at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:293)
                                                                          at android.view.View.performClick(View.java:4791)
                                                                          at android.view.View$PerformClick.run(View.java:19884)
                                                                          at android.os.Handler.handleCallback(Handler.java:739)
                                                                          at android.os.Handler.dispatchMessage(Handler.java:95)
                                                                          at android.os.Looper.loop(Looper.java:135)
                                                                          at android.app.ActivityThread.main(ActivityThread.java:5345)
                                                                          at java.lang.reflect.Method.invoke(Native Method)
                                                                          at java.lang.reflect.Method.invoke(Method.java:372)
                                                                          at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:947)
                                                                          at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:742)
                                                                       Caused by: java.lang.reflect.InvocationTargetException
                                                                          at java.lang.reflect.Method.invoke(Native Method)
                                                                          at java.lang.reflect.Method.invoke(Method.java:372)
                                                                          at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288)
                                                                          at android.view.View.performClick(View.java:4791)
                                                                          at android.view.View$PerformClick.run(View.java:19884)
                                                                          at android.os.Handler.handleCallback(Handler.java:739)
                                                                          at android.os.Handler.dispatchMessage(Handler.java:95)
                                                                          at android.os.Looper.loop(Looper.java:135)
                                                                          at android.app.ActivityThread.main(ActivityThread.java:5345)
                                                                          at java.lang.reflect.Method.invoke(Native Method)
                                                                          at java.lang.reflect.Method.invoke(Method.java:372)
                                                                          at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:947)
                                                                          at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:742)
                                                                       Caused by: java.lang.RuntimeException: Please set Qiscus user before start the chatting!
                                                                          at com.qiscus.sdk.Qiscus.checkUserSetup(Qiscus.java:518)
                                                                          at com.qiscus.sdk.Qiscus.buildChatWith(Qiscus.java:378)
                                                                          at com.qiscus.dragonfly.MainActivity.openChat(MainActivity.java:72)
                                                                          at java.lang.reflect.Method.invoke(Native Method)
                                                                          at java.lang.reflect.Method.invoke(Method.java:372)
                                                                          at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288)
                                                                          at android.view.View.performClick(View.java:4791)
                                                                          at android.view.View$PerformClick.run(View.java:19884)
                                                                          at android.os.Handler.handleCallback(Handler.java:739)
                                                                          at android.os.Handler.dispatchMessage(Handler.java:95)
                                                                          at android.os.Looper.loop(Looper.java:135)
                                                                          at android.app.ActivityThread.main(ActivityThread.java:5345)
                                                                          at java.lang.reflect.Method.invoke(Native Method)
                                                                          at java.lang.reflect.Method.invoke(Method.java:372)
                                                                          at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:947)
                                                                          at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:742)