How to fix "unresolved reference: int" in Kotlin

Issue

I've just started learning the basics of the Kotlin to create Android apps. I don't understand why I cannot run my program even though I'm following a tutorial.

Here's my code:

fun main() {
    var x: int = 3
    println("value of x is $x")
}

When I try to compile it, I get this error:

Unresolved reference: int

Solution

Use Int instead of int

All of the basic types in Kotlin start with a capital letter. This is different from Java, which has primitive types that start with a lowercase letter. You should replace int with Int.

Answered By - Sam