If anyone is using

moshi

(https://github.com/square/moshi) and the Kotlin support via the

moshi-kotlin

artifact, note that turning on Proguard requires some specfic rules to be added. Issue # 345 reports this along with some workarounds - https://github.com/square/moshi/issues/345 Repository demonstrating the problem = https://github.com/grandstaish/moshi-kotlin-reflection