<Can't use .contains() or .startsWith() in android...

# stackoverflow

[user]

Can't use .contains() or .startsWith() in android studio kotlin project
I'm new to android so bare with me..
Basically the title says it all and i found literally nothing on this issue, I get "unresolved reference" when using .contains or .startsWith, and i'm guessing many others that i don't know yet.
My kotlin version is 1.4.32, says it's the latest
-Worth mentioning that i went to the build.gradle file and changed "ext.kotlin_version = "1.4.32"" to "ext.kotlin_version = "1.6.0"" because it was showing an error in the IDE which said And it was solved by doing...