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`java.lang.NoClassDefFoundError: kotlinx/coroutines/test/TestDispatcher` when upgrading to 5.1.0

See original GitHub issue

Which version of Kotest are you using 5.1.0

Currently using 5.0.3 with the following dependencies:

    testImplementation("io.kotest:kotest-assertions-core:5.0.3")
    testImplementation("io.kotest:kotest-runner-junit5:5.0.3")
    testImplementation("io.kotest:kotest-property:5.0.3")

DescribeSpec tests work fine.

Upgrade to 5.1.0 and now all the tests are failing with:

java.lang.NoClassDefFoundError: kotlinx/coroutines/test/TestDispatcher
        at io.kotest.engine.test.interceptors.CoroutineDispatcherFactoryInterceptor.intercept(coroutineDispatcherFactoryInterceptor.kt:40)
        at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invokeSuspend(TestCaseExecutor.kt:78)
        at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
        at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
        at io.kotest.engine.test.interceptors.SupervisorScopeInterceptor$intercept$2.invokeSuspend(SupervisorScopeInterceptor.kt:23)
        at io.kotest.engine.test.interceptors.SupervisorScopeInterceptor$intercept$2.invoke(SupervisorScopeInterceptor.kt)
        at io.kotest.engine.test.interceptors.SupervisorScopeInterceptor$intercept$2.invoke(SupervisorScopeInterceptor.kt)
        at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:89)
        at kotlinx.coroutines.SupervisorKt.supervisorScope(Supervisor.kt:61)
        at io.kotest.engine.test.interceptors.SupervisorScopeInterceptor.intercept(SupervisorScopeInterceptor.kt:22)
        at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invokeSuspend(TestCaseExecutor.kt:78)
        at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
        at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
        at io.kotest.engine.test.interceptors.InvocationCountCheckInterceptor.intercept(InvocationCountCheckInterceptor.kt:29)
        at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invokeSuspend(TestCaseExecutor.kt:78)
        at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
        at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
        at io.kotest.engine.test.interceptors.TestFinishedInterceptor.intercept(TestFinishedInterceptor.kt:21)
        at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invokeSuspend(TestCaseExecutor.kt:78)
        at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
        at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
        at io.kotest.engine.test.TestCaseExecutor.execute(TestCaseExecutor.kt:79)
        at io.kotest.engine.spec.runners.SingleInstanceSpecRunner.runTest(SingleInstanceSpecRunner.kt:112)
        at io.kotest.engine.spec.runners.SingleInstanceSpecRunner.access$runTest(SingleInstanceSpecRunner.kt:31)
        at io.kotest.engine.spec.runners.SingleInstanceSpecRunner$execute$interceptAndRun$2$2.invokeSuspend(SingleInstanceSpecRunner.kt:51)
        at io.kotest.engine.spec.runners.SingleInstanceSpecRunner$execute$interceptAndRun$2$2.invoke(SingleInstanceSpecRunner.kt)
        at io.kotest.engine.spec.runners.SingleInstanceSpecRunner$execute$interceptAndRun$2$2.invoke(SingleInstanceSpecRunner.kt)
        at io.kotest.engine.test.scheduler.SequentialTestScheduler$schedule$3$1$1.invokeSuspend(SequentialTestScheduler.kt:20)
        at (Coroutine boundary.()
        at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invokeSuspend(TestCaseExecutor.kt:78)
        at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invokeSuspend(TestCaseExecutor.kt:78)
        at io.kotest.engine.test.interceptors.TestFinishedInterceptor.intercept(TestFinishedInterceptor.kt:21)
        at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invokeSuspend(TestCaseExecutor.kt:78)
        at io.kotest.engine.spec.runners.SingleInstanceSpecRunner.runTest(SingleInstanceSpecRunner.kt:112)
        at io.kotest.engine.spec.runners.SingleInstanceSpecRunner$execute$interceptAndRun$2$2.invokeSuspend(SingleInstanceSpecRunner.kt:51)
        at io.kotest.engine.test.scheduler.SequentialTestScheduler$schedule$3$1$1.invokeSuspend(SequentialTestScheduler.kt:20)
        at io.kotest.engine.test.scheduler.SequentialTestScheduler.schedule(SequentialTestScheduler.kt:18)
        at io.kotest.engine.spec.runners.SingleInstanceSpecRunner.execute_gIAlu_s$interceptAndRun(SingleInstanceSpecRunner.kt:49)
        at io.kotest.engine.spec.runners.SingleInstanceSpecRunner$execute$3.invokeSuspend(SingleInstanceSpecRunner.kt:58)
        at io.kotest.engine.spec.runners.SingleInstanceSpecRunner.execute-gIAlu-s(SingleInstanceSpecRunner.kt:56)
        at io.kotest.engine.spec.JvmSpecExecutorDelegate.execute(createSpecExecutorDelegate.kt:71)
        at io.kotest.engine.spec.SpecExecutor$specInterceptors$initial$1.invokeSuspend(SpecExecutor.kt:106)
        at io.kotest.engine.spec.interceptor.ConfigurationInContextInterceptor$intercept$2.invokeSuspend(ConfigurationInContextInterceptor.kt:23)
        at io.kotest.engine.spec.interceptor.ConfigurationInContextInterceptor.intercept-0E7RQCE(ConfigurationInContextInterceptor.kt:22)
        at io.kotest.engine.spec.SpecExecutor$specInterceptors$3$1.invokeSuspend(SpecExecutor.kt:115)
        at io.kotest.engine.spec.interceptor.SpecExtensionInterceptor$intercept$2.invokeSuspend(SpecExtensionInterceptor.kt:21)
        at io.kotest.engine.spec.SpecExtensions$intercept$initial$1.invokeSuspend(SpecExtensions.kt:143)
        at io.kotest.engine.spec.SpecExtensions.intercept(SpecExtensions.kt:154)
        at io.kotest.engine.spec.interceptor.SpecExtensionInterceptor.intercept-0E7RQCE(SpecExtensionInterceptor.kt:21)
        at io.kotest.engine.spec.SpecExecutor$specInterceptors$3$1.invokeSuspend(SpecExecutor.kt:115)
        at io.kotest.engine.spec.interceptor.ProjectContextInterceptor$intercept$2.invokeSuspend(ProjectContextInterceptor.kt:21)
        at io.kotest.engine.spec.interceptor.ProjectContextInterceptor.intercept-0E7RQCE(ProjectContextInterceptor.kt:20)
        at io.kotest.engine.spec.SpecExecutor$specInterceptors$3$1.invokeSuspend(SpecExecutor.kt:115)
        at io.kotest.engine.spec.SpecExecutor.specInterceptors-gIAlu-s(SpecExecutor.kt:116)
        at io.kotest.engine.spec.SpecExecutor$referenceInterceptors$innerExecute$1.invokeSuspend(SpecExecutor.kt:84)
        at io.kotest.engine.spec.interceptor.FinalizeSpecInterceptor.intercept-0E7RQCE(FinalizeSpecInterceptor.kt:19)
        at io.kotest.engine.spec.SpecExecutor$referenceInterceptors$3$1.invokeSuspend(SpecExecutor.kt:89)
        at io.kotest.engine.spec.interceptor.PrepareSpecInterceptor.intercept-0E7RQCE(PrepareSpecInterceptor.kt:20)
        at io.kotest.engine.spec.SpecExecutor$referenceInterceptors$3$1.invokeSuspend(SpecExecutor.kt:89)
        at io.kotest.engine.spec.interceptor.ApplyExtensionsInterceptor.intercept-0E7RQCE(ApplyExtensionsInterceptor.kt:35)
        at io.kotest.engine.spec.SpecExecutor$referenceInterceptors$3$1.invokeSuspend(SpecExecutor.kt:89)
        at io.kotest.engine.spec.interceptor.SpecFinishedInterceptor.intercept-0E7RQCE(SpecFinishedInterceptor.kt:18)
        at io.kotest.engine.spec.SpecExecutor$referenceInterceptors$3$1.invokeSuspend(SpecExecutor.kt:89)
        at io.kotest.engine.spec.interceptor.SpecStartedInterceptor.intercept-0E7RQCE(SpecStartedInterceptor.kt:19)
        at io.kotest.engine.spec.SpecExecutor$referenceInterceptors$3$1.invokeSuspend(SpecExecutor.kt:89)
        at io.kotest.engine.spec.interceptor.SpecRefExtensionInterceptor$intercept$inner$1.invokeSuspend(SpecRefExtensionInterceptor.kt:24)
        at io.kotest.engine.spec.interceptor.SpecRefExtensionInterceptor.intercept-0E7RQCE(SpecRefExtensionInterceptor.kt:27)
        at io.kotest.engine.spec.SpecExecutor$referenceInterceptors$3$1.invokeSuspend(SpecExecutor.kt:89)
        at io.kotest.engine.spec.interceptor.RequiresTagSpecInterceptor.intercept-0E7RQCE(RequiresTagSpecInterceptor.kt:35)
        at io.kotest.engine.spec.SpecExecutor$referenceInterceptors$3$1.invokeSuspend(SpecExecutor.kt:89)
        at io.kotest.engine.spec.interceptor.TagsExcludedSpecInterceptor.intercept-0E7RQCE(TagsExcludedDiscoveryExtension.kt:32)
        at io.kotest.engine.spec.SpecExecutor$referenceInterceptors$3$1.invokeSuspend(SpecExecutor.kt:89)
        at io.kotest.engine.spec.interceptor.SystemPropertySpecFilterInterceptor.intercept-0E7RQCE(SystemPropertySpecFilterInterceptor.kt:49)
        at io.kotest.engine.spec.SpecExecutor$referenceInterceptors$3$1.invokeSuspend(SpecExecutor.kt:89)
        at io.kotest.engine.spec.interceptor.SpecFilterInterceptor.intercept-0E7RQCE(SpecFilterInterceptor.kt:37)
        at io.kotest.engine.spec.SpecExecutor$referenceInterceptors$3$1.invokeSuspend(SpecExecutor.kt:89)
        at io.kotest.engine.spec.interceptor.IgnoredSpecInterceptor.intercept-0E7RQCE(IgnoredSpecInterceptor.kt:42)
        at io.kotest.engine.spec.SpecExecutor$referenceInterceptors$3$1.invokeSuspend(SpecExecutor.kt:89)
        at io.kotest.engine.spec.interceptor.EnabledIfSpecInterceptor.intercept-0E7RQCE(EnabledIfSpecInterceptor.kt:40)
        at io.kotest.engine.spec.SpecExecutor$referenceInterceptors$3$1.invokeSuspend(SpecExecutor.kt:89)
        at io.kotest.engine.ConcurrentTestSuiteScheduler$schedule$8$1$2.invokeSuspend(ConcurrentTestSuiteScheduler.kt:71)

        Caused by:
        java.lang.NoClassDefFoundError: kotlinx/coroutines/test/TestDispatcher
            at io.kotest.engine.test.interceptors.CoroutineDispatcherFactoryInterceptor.intercept(coroutineDispatcherFactoryInterceptor.kt:40)
            at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invokeSuspend(TestCaseExecutor.kt:78)
            at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
            at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
            at io.kotest.engine.test.interceptors.SupervisorScopeInterceptor$intercept$2.invokeSuspend(SupervisorScopeInterceptor.kt:23)
            at io.kotest.engine.test.interceptors.SupervisorScopeInterceptor$intercept$2.invoke(SupervisorScopeInterceptor.kt)
            at io.kotest.engine.test.interceptors.SupervisorScopeInterceptor$intercept$2.invoke(SupervisorScopeInterceptor.kt)
            at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:89)
            at kotlinx.coroutines.SupervisorKt.supervisorScope(Supervisor.kt:61)
            at io.kotest.engine.test.interceptors.SupervisorScopeInterceptor.intercept(SupervisorScopeInterceptor.kt:22)
            at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invokeSuspend(TestCaseExecutor.kt:78)
            at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
            at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
            at io.kotest.engine.test.interceptors.InvocationCountCheckInterceptor.intercept(InvocationCountCheckInterceptor.kt:29)
            at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invokeSuspend(TestCaseExecutor.kt:78)
            at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
            at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
            at io.kotest.engine.test.interceptors.TestFinishedInterceptor.intercept(TestFinishedInterceptor.kt:21)
            at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invokeSuspend(TestCaseExecutor.kt:78)
            at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
            at io.kotest.engine.test.TestCaseExecutor$execute$2$1.invoke(TestCaseExecutor.kt)
            at io.kotest.engine.test.TestCaseExecutor.execute(TestCaseExecutor.kt:79)
            at io.kotest.engine.spec.runners.SingleInstanceSpecRunner.runTest(SingleInstanceSpecRunner.kt:112)
            at io.kotest.engine.spec.runners.SingleInstanceSpecRunner.access$runTest(SingleInstanceSpecRunner.kt:31)
            at io.kotest.engine.spec.runners.SingleInstanceSpecRunner$execute$interceptAndRun$2$2.invokeSuspend(SingleInstanceSpecRunner.kt:51)
            at io.kotest.engine.spec.runners.SingleInstanceSpecRunner$execute$interceptAndRun$2$2.invoke(SingleInstanceSpecRunner.kt)
            at io.kotest.engine.spec.runners.SingleInstanceSpecRunner$execute$interceptAndRun$2$2.invoke(SingleInstanceSpecRunner.kt)
            at io.kotest.engine.test.scheduler.SequentialTestScheduler$schedule$3$1$1.invokeSuspend(SequentialTestScheduler.kt:20)
            at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
            at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
            at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:274)
            at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:85)
            at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:59)
            at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source)
            at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:38)
            at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source)
            at io.kotest.common.RunBlockingKt.runBlocking(runBlocking.kt:3)
            at io.kotest.engine.TestEngineLauncher.launch(TestEngineLauncher.kt:194)
            at io.kotest.runner.junit.platform.KotestJunitPlatformTestEngine.execute(KotestJunitPlatformTestEngine.kt:80)
            at io.kotest.runner.junit.platform.KotestJunitPlatformTestEngine.execute(KotestJunitPlatformTestEngine.kt:44)
            at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107)
            at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88)
            at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54)
            at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67)
            at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52)
            at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
            at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
            at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
            at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53)
            at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:99)
            at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:79)
            at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:75)
            at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:61)
            at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
            at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
            at java.base/java.lang.reflect.Method.invoke(Method.java:568)
            at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
            at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
            at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
            at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94)
            at jdk.proxy1/jdk.proxy1.$Proxy2.stop(Unknown Source)
            at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:193)
            at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:129)
            at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:100)
            at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:60)
            at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56)
            at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:133)
            at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:71)
            at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)
            at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)

            Caused by:
            java.lang.ClassNotFoundException: kotlinx.coroutines.test.TestDispatcher
                at io.kotest.engine.test.interceptors.CoroutineDispatcherFactoryInterceptor.intercept(coroutineDispatcherFactoryInterceptor.kt:40)
                ... 70 more

Manually adding org.jetbrains.kotlinx:kotlinx-coroutines-test:1.6.0 as a test dependency resolves the issue.

    testImplementation("io.kotest:kotest-assertions-core:5.1.0")
    testImplementation("io.kotest:kotest-runner-junit5:5.1.0")
    testImplementation("io.kotest:kotest-property:5.1.0")
    testImplementation("org.jetbrains.kotlinx:kotlinx-coroutines-test:1.6.0")

I would expect Kotest to either bring in this dependency for us or update the documentation to say it’s required out of the box. We have no ProjectConfig for these unit tests.

Issue Analytics

  • State:closed
  • Created 2 years ago
  • Reactions:4
  • Comments:7 (7 by maintainers)

github_iconTop GitHub Comments

31reactions
frozenicecommented, Jan 19, 2022

TL;DR: add kotlin-coroutines.version=1.6.0 to gradle.properties when using Spring Boot.

@busches @lenguyenthanh are you using Spring? Because that was the culprit here.

Spring’s io.spring.dependency-management Gradle Plugin pre-defines versions for several dependencies (according to the respective Spring Boot version’s BOM, see here for Spring Boot 2.6.2). These are versions of those dependencies Spring Boot (in that version) is built / tested against. That’s why you can simply write implementation("org.springframework.boot:spring-boot-starter-webflux") without a version, btw. You can see easily what versions are defined by executing the dependencyManagement Gradle task in your Spring Boot project (I’m using Spring Boot 2.6.2):

...
    org.jetbrains.kotlinx:kotlinx-coroutines-test 1.5.2
...

By requiring kotest 5.1.0 as a dependency I get version 1.5.2 of org.jetbrains.kotlinx:kotlinx-coroutines-test. You can check what version you get by expanding External Libraries in IntelliJ (at the bottom of the file tree on the left) or by executing the Gradle task dependencies (which gives more information in a tree format):

...
+--- io.kotest:kotest-runner-junit5:5.1.0
|    \--- io.kotest:kotest-runner-junit5-jvm:5.1.0
|         +--- io.kotest:kotest-framework-api:5.1.0
|         |    \--- io.kotest:kotest-framework-api-jvm:5.1.0
|         |         +--- org.jetbrains.kotlinx:kotlinx-coroutines-test:{require 1.6.0; reject _} -> 1.5.2
|         |         |    +--- org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.2 (*)
|         |         |    \--- org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.30 -> 1.6.10 (*)
|         |         +--- org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10 (*)
...

You can see that io.kotest:kotest-framework-api-jvm:5.1.0 requests version 1.6.0 of org.jetbrains.kotlinx:kotlinx-coroutines-test (verify on mvnrepository), but the actual version that is finally used is 1.5.2 (as defined by Spring).

kotlinx/coroutines/test/TestDispatcher ist not included in version 1.5.2 (as defined by Spring Boot), but is included in version 1.6.0 (as required by kotest) of org.jetbrains.kotlinx:kotlinx-coroutines-test.

Now, you could manually require the 1.6.0 version of org.jetbrains.kotlinx:kotlinx-coroutines-test, but that leads to (potential) problems, because many other coroutine dependencies will still be version 1.5.2 - which can break things.

Fortunately Spring Boot allows overriding those pre-defined versions. Refer to the Version Properties appendix in Spring Boot’s documentation (see here for Spring Boot 2.6.2).

So just add the following to your project’s gradle.properties:

kotlin-coroutines.version=1.6.0

Now all kotlinx-coroutines dependencies will use version 1.6.0, including org.jetbrains.kotlinx:kotlinx-coroutines-test.

7reactions
buschescommented, Jan 19, 2022

@frozenice thanks! I did it via extra["kotlin-coroutines.version"] = "1.6.0" in build.gradle.kts but same thing in the end.

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