``` org.junit.platform.launcher.core.DefaultLauncher handleThrowable WARNING: TestEngine with ID 'sp...

# spek

[Nikky]

org.junit.platform.launcher.core.DefaultLauncher handleThrowable
WARNING: TestEngine with ID 'spek2' failed to discover tests
java.lang.NoClassDefFoundError: kotlin/streams/jdk8/StreamsKt

when i just tried to upgrade the spek version

[raniejade]

Can you include the build file?

[Nikky]

build.gradle

build.gradle

[Nikky]

it loads some subprojects as testDependencies so i can well.. test them and there is basically nothing else going on in the root project

[raniejade]

You have to add a dependency to kotlin-stdlib since your excluding it from the spek dependencies

[Nikky]

thencommenting out the exclude rules should fix it too ..

[Nikky]

i just took the samples fro mthe website

[Nikky]

i ended up needing a vers specific dependency on kotlin-stdlib-jdk8

[Nikky]

this is what ended up working

dependencies {
    testImplementation project(":voodoo")
    testImplementation (group: 'org.spekframework.spek2', name: 'spek-dsl-jvm', version: spek_version)  {
        exclude group: 'org.jetbrains.kotlin'
    }
    testRuntimeOnly (group: 'org.spekframework.spek2', name: 'spek-runner-junit5', version: spek_version) {
        exclude group: 'org.junit.platform'
        exclude group: 'org.jetbrains.kotlin'
    }
    testImplementation group: 'org.jetbrains.kotlin', name: 'kotlin-test', version: kotlin_version
    testImplementation group: 'org.jetbrains.kotlin', name: 'kotlin-stdlib-jdk8', version: kotlin_version

    // <https://mvnrepository.com/artifact/org.junit.platform/junit-platform-engine>
    testImplementation group: 'org.junit.platform', name: 'junit-platform-engine', version: '1.3.0-RC1'

    // spek requires kotlin-reflect, can be omitted if already in the classpath
    testRuntimeOnly group: 'org.jetbrains.kotlin', name: 'kotlin-reflect', version: kotlin_version
}

[raniejade]

You're missing this one: implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version" which is stated on the website.

[Nikky]

i tied that but it would fail at runtime.. apparently spek can then not find the jdk8 streams at runtime

[raniejade]

ahh, yes - my bad. That should be kotlin-stdlib-jdk8 now.

[Nikky]

but i am fine with testImplementation group: 'org.jetbrains.kotlin', name: 'kotlin-stdlib-jdk8', version: kotlin_version
since the root project really does not need to produce artifacts