Unable to instantiate application com.android.tools.fd.runtime.BootstrapApplication ?Android

Disable the Instant Run option in Android Studio. Instructions are in the Android Studio Instant Run documentation. Instant Run tries to do hot swapping of your code; this causes the application class to be moved. To disable Instant Run Go to File –> Settings–> Build,Execution,Deployment –>Instant Run —> uncheck “Enable instant run”

Instant run in Android Studio 2.0 (how to turn off)

UPDATE In Android Studio Version 3.5 and Above Now Instant Run is removed, It has “Apply Changes“. See official blog for more about the change. we removed Instant Run and re-architectured and implemented from the ground-up a more practical approach in Android Studio 3.5 called Apply Changes.Apply Changes uses platform-specific APIs from Android Oreo and … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)