Android Studio Warning - Innerclass Annotations Are Missing Corresponding Enclosingmember Annotations

I recently upgraded to Android Studio 3.1 and upon building my Kotlin with Java project I got the following warning. InnerClass annotations are missing corresponding EnclosingMemb

Solution 1:

It may because some annotations be confused, so just add proguard rule:

-keepattributes *Annotation* -keep @**annotation** class * {*;}

it worked fine to me.

Solution 2:

To fix the issue temporarily, I am adding this:

buildTypes {
    release {
        lintOptions {
            checkReleaseBuilds false
            abortOnError false
        }
    }
}

Will update if I find a permanent fix. This page for configuring JUnit 5 may also help