package Ġorg . ling u am ach ina . k ling u am ach ina . interpreter . objects . exceptions Ċ Ċ import Ġorg . ling u am ach ina . k ling u am ach ina . interpreter . exceptions . KL ing ua M ach ina RuntimeException Ċ Ċ class ĠUnknown Instance Field ( val ĠfieldName : ĠString ): ĊĠĠĠĠĠĠĠ ĠK L ing ua M ach ina RuntimeException (" Unknown Ġinstance Ġfield Ġ'$ fieldName '") Ċ