``` at org.junit.platform.engine.support.hierarc...

# gradle

[xenoterracide]

at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$3(HierarchicalTestExecutor.java:121)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.executeRecursively(HierarchicalTestExecutor.java:108)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.execute(HierarchicalTestExecutor.java:79)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:55)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:43)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:170)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:154)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:90)
	at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:74)
	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: org.gradle.api.UnknownDomainObjectException: Extension of type 'JavaPluginConvention' does not exist. Currently registered extension types: [ExtraPropertiesExtension, DefaultArtifactPublicationSet, ReportingExtension, XenoExtension, IdeaModel, CheckstyleExtension, SpotBugsExtension]
	at org.gradle.api.internal.plugins.ExtensionsStorage.getHolderByType(ExtensionsStorage.java:88)
	at org.gradle.api.internal.plugins.ExtensionsStorage.configureExtension(ExtensionsStorage.java:71)
	at org.gradle.api.internal.plugins.DefaultConvention.configure(DefaultConvention.java:217)
	at org.gradle.api.internal.plugins.DefaultConvention.configure(DefaultConvention.java:212)
	at com.xenoterracide.gradle.plugin.XenoCodeQualityPlugin.apply(XenoCodeQualityPlugin.java:26)
	at com.xenoterracide.gradle.plugin.XenoCodeQualityPlugin.apply(XenoCodeQualityPlugin.java:17)
	at org.gradle.api.internal.plugins.ImperativeOnlyPluginTarget.applyImperative(ImperativeOnlyPluginTarget.java:42)
	at org.gradle.api.internal.plugins.RuleBasedPluginTarget.applyImperative(RuleBasedPluginTarget.java:50)
	at org.gradle.api.internal.plugins.DefaultPluginManager.addPlugin(DefaultPluginManager.java:164)
	at org.gradle.api.internal.plugins.DefaultPluginManager.access$200(DefaultPluginManager.java:47)
	at org.gradle.api.internal.plugins.DefaultPluginManager$AddPluginBuildOperation.run(DefaultPluginManager.java:252)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:317)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:309)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:185)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:97)
	at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
	at org.gradle.api.internal.plugins.DefaultPluginManager.doApply(DefaultPluginManager.java:144)
	... 56 more

ny suggesions? what am I doing wrong