Newbie Question: IDEA not catching all compile errors

I’m new to IDEA/Kotlin but not jetbrains. I’m curious if this is how its supposed to work or do I need to configure something.

Here’s a test:

“`kotlin open class SomeSuper { val someprop = “” }

class SomeSub: SomeSuper() { override val someprop = “someval” } “`

“`shell $ kotlinc play.kt && kotlin PlayKt

play.kt:44:5: error: ‘someprop’ in ‘SomeSuper’ is final and cannot be overridden override val someprop = “someval “`

Shouldn’t the IDE catch this as I’m typing it? I’m sure I’m overlooking something. Nothing is shown in “problems window”.