Compilation fails using Gradle and Kotlin - compilation

Question

I am going through the examples in Kotlin in Action book. The gradle buid script is as follows:
group 'kotlin-in-action'
version '1.0-SNAPSHOT'
buildscript {
ext.kotlin_version = '1.1.2-2'
repositories {
mavenCentral()
}
dependencies {
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
apply plugin: 'kotlin'
repositories {
mavenCentral()
}
apply plugin: 'java'
dependencies {
testCompile 'junit:junit:4.12'
}
dependencies {
compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
compile "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
compile "junit:junit:4.12"
compile 'junit:junit:4.12'
compile 'junit:junit:4.12'
}
sourceSets {
main.kotlin.srcDirs += 'src'
}
All the scripts compile except for two classes that uses junit.
package ch06.ex1_8_1_LateinitializedProperties
import org.junit.Before
import org.junit.Test
import org.junit.Assert
class MyService {
fun performAction(): String = "foo"
}
class MyTest {
private var myService: MyService? = null
#Before fun setUp() {
myService = MyService()
}
#Test fun testAction() {
Assert.assertEquals("foo",
myService!!.performAction())
}
}
The compiler says it can't find junit. I have tried adding the jar files in IntelliJ, but this has not resolved the problem. The jar files I have added are junit and hamscrest-core. This is all version 4.12.

Answer 1

I have resolved this. I had to add the Junit and hamcrest-core jar files from the mavan depository.