Here's a bug that looks impossible until you understand Gson. You have this data class in your Pokedex app: data class PokemonStat ( @SerializedName ( "base_stat" ) val baseStat : Int , val stat : StatInfo ) A teammate cleans up the code and deletes what looks like a redundant line: data class PokemonStat ( val baseStat : Int , // @SerializedName removed val stat : StatInfo ) It comp...