Today I receive this error, while exactly same code was working an hour ago
Error:Kotlin: Unsupported plugin option: org.jetbrains.kotlin.android:enable
Taking pointers from this answer - https://stackoverflow.com/a/49972566/7599300, I got rid by doing following steps:
File -> Settings -> Plugins
Unselect and select again red marked plugins.
Click Apply and then OK.
Android Studio will prompt to Restart, just Restart it.