file:///E:/SwipupYourfaceapps/app/build.gradle.kts:28:31: Unresolved reference: VERSION_1_6
I suppose you need change yours targetCompatibility or sourceCompatibility to “VERSION_1_8” or “VERSION_17“ in your build.gradle.kts
Anyway, we need more information about your code written in build.gradle.kts file. My answer may be incorrect