Error:(76, 37) Kotlin: Unresolved reference. None ...

# tornadofx

[thlinde]

Error:(76, 37) Kotlin: Unresolved reference. None of the following candidates is applicable because of receiver type mismatch:
public fun ButtonBase.action(op: () -> Unit): Unit defined in tornadofx
public fun ChoiceBox<*>.action(op: () -> Unit): Unit defined in tornadofx
public fun MenuItem.action(op: () -> Unit): Unit defined in tornadofx
public fun TextField.action(op: () -> Unit): Unit defined in tornadofx