Invoke-customs are only supported starting with Android O (--min-api 26)

Invoke-customs are only supported starting with Android O (--min-api 26)

Including the following within app/build.gradle:

android {
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

Like :

Then rebuild the project and restart:

Finally: