================ Step #1 ================= Cleaning output files: out/production/module/Enum.class out/production/module/EnumKt.class out/production/module/META-INF/module.kotlin_module End of files Compiling files: src/Enum.kt End of files Marked as dirty by Kotlin: src/useBecameNullable.kt Exit code: ADDITIONAL_PASS_REQUIRED ------------------------------------------ Cleaning output files: out/production/module/META-INF/module.kotlin_module out/production/module/UseBecameNullableKt.class End of files Compiling files: src/useBecameNullable.kt End of files Exit code: ABORT ------------------------------------------ COMPILATION FAILED Only safe (?.) or non-null asserted (!!.) calls are allowed on a nullable receiver of type Any? ================ Step #2 ================= Cleaning output files: out/production/module/Enum.class out/production/module/EnumKt.class End of files Compiling files: src/Enum.kt src/useBecameNullable.kt End of files Exit code: OK ------------------------------------------