Why do Kotlin files appear as .java is Fabric Crashlytics with Proguard enabled?
问题 I have recently turned on Proguard minimisation for an Android app which uses Crashylics reporting on the Fabric console. The project is written mainly in Kotlin. Crash reports are still received. The stack trace no longer lists Kotlin source files as .kt though, but as .java eg, MyFragment.java:20 instead of MyFragment.kt:20 From the information in the traces, such as function and variable names, the line numbers in the stack match up to those in the .kt file I have Proguard exclusions as