Cannot run Android application on emulator/device - activity doesn't exist?
问题 When trying to run my application on the emulator I get an error from the activitymanager: ActivityManager: Error type 3 My activity exists, is listed in the manifest (in fact, its the MAIN launcher activity). Anyone know what this error means? 回答1: If you are running Eclipse try Projects-->Clean.. . and clean the project before running again. 回答2: i faced the same issue. I cleaned the project and removed the android:enabled=false in android manifest. This solved the issue. 回答3: Check