Anyone know what this error means? I believe it happens when I try to override onDestroyView() in a Fragment. java.lang.NoSuchMethodError: No virtual method _$_clearFindViewByIdCache()V in class Lcom/../MyFragment; or its super classes (declaration of 'com...MyFragment' appears in /data/app/com.example.composesample-1/base.apk:classes2.dex) at com.example.composesample.ui.util.MyFragment.onDestroyView(MyFragment.kt:28) If I change it to something like onDestroy(), there are no problems.

Try disabling the kotlin-android plugin that generates the synthetic view methods in that module

Disabling/removing

apply plugin: 'kotlin-android-extensions'

did the trick. Thanks again!

try to avoid kotlin synthetic https://proandroiddev.com/the-argument-over-kotlin-synthetics-735305dd4ed0