java.lang.IllegalStateException

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  • Application all of a sudden crashing
    via Stack Overflow by Justin
    ,
  • Whenever I start a new Activity, my app crashes
    via Stack Overflow by Dakota
    ,
    • java.lang.IllegalStateException: Could not execute method for android:onClick at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:293) at android.view.View.performClick(View.java:5201) at android.view.View$PerformClick.run(View.java:21163) at android.os.Handler.handleCallback(Handler.java:746) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5443) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Method.invoke(Native Method) at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288) ... 9 more Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.myapp.myapp/com.myapp.myapp.Register}; have you declared this activity in your AndroidManifest.xml? at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1885) at android.app.Instrumentation.execStartActivity(Instrumentation.java:1579) at android.app.Activity.startActivityForResult(Activity.java:3921) at android.support.v4.app.BaseFragmentActivityJB.startActivityForResult(BaseFragmentActivityJB.java:48) at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:75) at android.app.Activity.startActivityForResult(Activity.java:3881) at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:871) at android.app.Activity.startActivity(Activity.java:4208) at android.app.Activity.startActivity(Activity.java:4176) at com.myapp.myapp.Login.signUp(Login.java:106) ... 11 more

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