Hey guys, after include Spek on my project I start...

# spek

[jackmiras]

Hey guys, after include Spek on my project I start to get the following exception when I try to run the gradle build task on my project:

Exception in thread "main" java.lang.AbstractMethodError: Method org/jetbrains/spek/engine/Scope$Group.getType()Lorg/junit/platform/engine/TestDescriptor$Type; is abstractTest
        at org.jetbrains.spek.engine.Scope$Group.getType(Scope.kt)
        at org.junit.platform.launcher.TestIdentifier.from(TestIdentifier.java:60)
        at org.junit.platform.launcher.TestPlan.lambda$from$0(TestPlan.java:78)
        at org.junit.platform.engine.TestDescriptor.accept(TestDescriptor.java:245)
        at org.junit.platform.engine.TestDescriptor.lambda$accept$0(TestDescriptor.java:247)
        at java.lang.Iterable.forEach(Iterable.java:75)
        at org.junit.platform.engine.TestDescriptor.accept(TestDescriptor.java:247)
        at org.junit.platform.launcher.TestPlan.lambda$from$1(TestPlan.java:79)
        at java.util.LinkedHashMap$LinkedValues.forEach(LinkedHashMap.java:608)
        at org.junit.platform.launcher.TestPlan.from(TestPlan.java:79)
        at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:130)
        at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:87)
        at org.junit.platform.console.tasks.ConsoleTestExecutor.executeTests(ConsoleTestExecutor.java:65)
        at org.junit.platform.console.tasks.ConsoleTestExecutor.lambda$execute$0(ConsoleTestExecutor.java:57)
        at org.junit.platform.console.tasks.CustomContextClassLoaderExecutor.invoke(CustomContextClassLoaderExecutor.java:33)
        at org.junit.platform.console.tasks.ConsoleTestExecutor.execute(ConsoleTestExecutor.java:57)
        at org.junit.platform.console.ConsoleLauncher.executeTests(ConsoleLauncher.java:79)
        at org.junit.platform.console.ConsoleLauncher.execute(ConsoleLauncher.java:69)
        at org.junit.platform.console.ConsoleLauncher.main(ConsoleLauncher.java:41)
:junitPlatformTest FAILED

Does anyone know why this happen or how fix it?