<Android Studio cannot find R (Resources) after Ja...

# stackoverflow

[user]

Android Studio cannot find R (Resources) after Java to Kotlin conversion
Problem
Every time I paste a Java code from somewhere, I select yest to the Android Studio prompt asking to convert it from Java to Kotlin. But after that happens, I seem to have all my previously working R based resources like R.drawable and R.string as unresolved.

https://i.stack.imgur.com/ioTQ3.png▾

What have I tried so far ?
Every time this happens, I copy the converted code and then Ctrl+Z up to a point where everything is back to being resolved...