I am currently migrating my Android application to kotlin 2.0.0

this code used to compile fine

myConfig?.myFramerate = myFramerate!!.toInt()
myConfig?.myFramerate = myFramerate.toInt()

Following migration to kotlin 2.0.0 however the second line now fails with

Only safe (?.) or non-null asserted (!!.) calls are allowed on a nullable receiver of type 'kotlin.String?'.

to resolve the compile time error I add !! as shown here on the second line

myConfig?.myFramerate = myFramerate!!.toInt()
myConfig?.myFramerate = myFramerate!!.toInt()

however I then get this android studio message

Unnecessary non-null assertion (!!) on a non-null receiver of type String

is there something i am missing when migrating to Kotlin 2.0.0?