...It provided support for Groovy source files within Android projects, though it’s officially deprecated in favor of Kotlin and has ceased working with Gradle 6.0 and above. This plugin has been successfully tested with Android Studio and will make no attempts to add support for other IDEs. This plugin will let you write an application in Groovy but it is recommended, for performance, memory and battery life, that you use @CompileStatic wherever possible. In order to include libraries written in groovy that include the groovy or groovy-all jars, you will need to exclude the groovy dependency allowing the grooid jar to be the one to be compiled against.