<What is wrong with my Android Proguard rule> I am...

# stackoverflow

[user]

What is wrong with my Android Proguard rule
I am using the Gson android library for handling data with a kotlin data class.
Kotlin Data Class
class DataType {
data class UserData {
var userName: String = "";
var userEmail: String = "";
}
}

Android Proguard Rule
-keep class .DataType.* {*;}

The problem is my application working fine in debug mode, but proguard obfuscated the code in release mode and the release version not working as expected.
Any solution???