I'm getting `The feature "multi platform projects"...

# multiplatform

[Derek Ellis]

I'm getting The feature "multi platform projects" is experimental and should be enabled explicitly in my android sourcesets on Kotlin 1.4.
This is the configuration I'm using:

kotlin {
    android()
    js {
        browser()
    }
    ios()
}

It's nothing special which makes it more confusing 🤔
(the plugin is also 1.4)