Renaming “java” directory to “kotlin” in Android Studio

Question

My android project is written 100% in Kotlin and I wanted to rename the java directory to kotlin to be consistent. I added

sourceSets{
    main.java.srcDirs +=         


        

Answer 1

Android Studio 3.6 has the same behavior. This is how I fixed it, in app/build.gradle:

// Register kotlin files
android.sourceSets {
     androidTest.java.srcDirs += "src/androidTest/kotlin"
     debug.java.srcDirs += "src/debug/kotlin"
     main.java.srcDirs += "src/main/kotlin"
     test.java.srcDirs += "src/test/kotlin"
}