Android Studio: How to output the result to the console?

Question

android studio

I'm making a request to the site's api. In MainActivity I wrote like this

val retrofit = Retrofit.Builder()
            .baseUrl("https://jsonplaceholder.typicode.com/")
            .addConverterFactory(GsonConverterFactory.create())
            .build()
        val api = retrofit.create(ApiService::class.java)

There is an interface in which

interface ApiService {
    @GET("users")
    fun fetchAllusers():Call<List<User>>
}

as a result, when I write further in MainActivity, it
api.fetchAllusers().enqueue()
underlines the type of error in red. How to fix it? And how to display the result, for example, in the studio console?

Answer 1

Learn to use the IDE at least enough to be able to see the reason for the underlining in red. Then it will be clear what to fix.