A modern programming language that makes developers happier.

kotlinlang

<@U223RM5CH> does it sound similar to <https://kotlinlang.slack.com/archives/C19FD9681/p1503514199000045> ?

Huh. My issue seemed to have fixed itself after I updated gradle to `4.1`

I would rather assume someone fixed it between 3.3 and 4.1 :smile:

Ended up with one issue appearing after updating from Gradle 4.0 to 4.1. If the build file contains a *buildscript* block then the *compile* function cannot be called in a top level *dependencies* block, which is *very* weird!

Fixed the issue by replacing the *buildscript* block with the *plugins* block.

Are you using the `java-library` plugin?
If so then that's probably your problem.

If you are using the `java-library` plugin you need some code like this for kotlin to work correctly.
```
configurations {
	"apiElements" {
		/*
		 * Needed to configure kotlin to work correctly with the "java-library" plugin.
		 * See:
		 * <https://docs.gradle.org/current/userguide/java_library_plugin.html#sec:java_library_known_issues>
		 * <https://youtrack.jetbrains.com/issue/KT-18497>
		 */
		val compileKotlin: KotlinCompile by tasks
		outgoing
			.variants
			.getByName("classes")
			.artifact(mapOf(
				"file" to compileKotlin.destinationDir,
				"type" to "java-classes-directory",
				"builtBy" to compileKotlin
			))
	}
}
```