Im following the doc here : <https://ktor.io/docs/...

# ktor

[dany giguere]

Im following the doc here : https://ktor.io/docs/creating-http-apis.html#defining-the-routing-for-customers, this part:

import io.ktor.application.*
import io.ktor.features.*
import io.ktor.serialization.*

fun Application.module() {
    install(ContentNegotiation) {
        json()
    }
}

but I get this error: