I am using kotlin in Intellij with a maven build. I have JUnit 5 Version 1.7.10 and the bundled Kotlin compiler. My simple Kotlin code is working fine but I cannot get the JUnit Tests to work in the Test runner. In the Maven build the tests work (goal install). When starting test in the runner I get this error message: Sep 12, 2022 112058 AM org.junit.platform.launcher.core.DefaultLauncher handleThrowable WARNING: TestEngine with ID 'junit-jupiter' failed to discover tests java.lang.NoClassDefFoundError: org/junit/jupiter/api/ClassOrderer at org.junit.jupiter.engine.config.DefaultJupiterConfiguration.<clinit>(DefaultJupiterConfiguration.java:50) at org.junit.jupiter.engine.JupiterTestEngine.discover(JupiterTestEngine.java:66) at org.junit.platform.launcher.core.DefaultLauncher.discoverEngineRoot(DefaultLauncher.java:168) at org.junit.platform.launcher.core.DefaultLauncher.discoverRoot(DefaultLauncher.java:155) at org.junit.platform.launcher.core.DefaultLauncher.discover(DefaultLauncher.java:120) at org.apache.maven.surefire.junitplatform.TestPlanScannerFilter.accept(TestPlanScannerFilter.java:56) has anyone seen this problem before??