Why doesn't Kotlin let me use writeText extension?

Question

I have a Kotlin class with a method, which creates some text and then I want to write it to a file:

import java.io.File
import java.util.*
import kotlin.io.*

class MyClass {
    fun run() {
        val result = html {
            head {
                title { +"Entry page" }
            }
            body {
                h1 {
                    +"Map"
                }
                +"Some HTML code"
            }
        }
        File("target/wdef/index.html").writeText(result)
    }
}

I get an error - the writeText(result) is highlighted red and I get the error message Error:(26, 40) Kotlin: Unresolved reference: writeText.

How can I fix it?

Looks like a problem with build \ project configuration. Can you build it from CLI? Please answer here — voddan, Feb 26 '16 at 09:50

score 3 · Accepted Answer · answered Feb 26 '16 at 06:23

3

A problem might be that you pass a wrong type to writeText. It requires String, but you pass an html building object HTML. Try to convert it with toString:

File("target/wdef/index.html").writeText(result.toString())

answered Feb 26 '16 at 06:23

voddan

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Thanks, but in `File("target/wdef/index.html").writeText(result.toString())` the `writeText` part is also highlighted red. – Glory to Russia Feb 26 '16 at 06:25
Are you sure the whole project is resolved? There should be more includes imo. – voddan Feb 26 '16 at 09:49

Why doesn't Kotlin let me use writeText extension?

1 Answers1