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kotlinlang

I am getting error: The feature "unit conversion" is disabled. What does this mean? and how do I enable it?

IDEA suggested to set languageVersion to "1.4", I am still getting the error though

What is the code? It has something to do with the return type of lambas as far as I remember. Typically it's a programming issue.

I am trying to return an nullable lambda
I have a function
```fun RBuilder.Hello(onClick:(()-&gt;Unit)? = null) {
   // . . .
}```
When I use it like this, I get this error
```Hello(
    onClick = { doSomething() }.takeIf { someconditionIsMet() }
)```

What’s the signature of `doSomething()`?

Weird. The sample code works perfectly fine for me with 1.3 and 1.4. And with JVM and JS target :thinking_face:

Are there any overloads to `Hello`?
Or maybe there’s a type inference problem?