java.lang.IllegalStateException: Could not execute method for android:onClick

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Samebug tips

,
via Stack Overflow by Rasel

Your package name in the manifest is as com.google.android.gm and activity name as com.android.mail.compose.ComposeActivity, making a mismatch between the package and activity name. Your activity class name should start with the package name.

Solutions on the web

via GitHub by btusca
, 1 year ago
Could not execute method for android:onClick
via GitHub by hassaanjamil
, 3 months ago
Could not execute method for android:onClick
via GitHub by danilorosso
, 1 year ago
Could not execute method for android:onClick
via Stack Overflow by kps2501
, 1 year ago
Could not execute method for android:onClick
via Stack Overflow by Zahraa Fatma
, 1 year ago
Could not execute method for android:onClick
android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.tristan.a1p1n1/com.example.tristan.a1p1n1.DICS}; have you declared this activity in your AndroidManifest.xml?
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1805)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1523)
at android.support.v4.app.BaseFragmentActivityJB.startActivityForResult(BaseFragmentActivityJB.java:50)
at android.app.Activity.startActivity(Activity.java:4507)
at android.app.Activity.startActivity(Activity.java:4475)
at com.example.tristan.a1p1n1.MainActivity.sendMessage(MainActivity.java:41)
at android.view.View.performClick(View.java:5610)
at android.view.View$PerformClick.run(View.java:22265)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)

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