Hi, I configured IntelliJ to use Maven 2.0.9, but running a goal from within IntelliJ doesn't work. When I use the internal Maven, it also doesn't work. I've attached a project which has that problem. This is the produced stacktrace: [INFO] Scanning for projects... [INFO] ------------------------------------------------------------------------ [INFO] Building Example Maven Plugin [INFO] [INFO] Id: com.xebia.maven.plugin:dependency-exporter:maven-plugin:1.0-SNAPSHOT [INFO] task-segment: [package] [INFO] ------------------------------------------------------------------------ [INFO] [groovy:generateStubs] [WARN] Failed to load provider from: org.codehaus.groovy.maven.runtime.loader.artifact.ArtifactProviderLoader@30e694 java.lang.NullPointerException org.codehaus.plexus.DefaultPlexusContainer.construct(DefaultPlexusContainer.java:308) org.codehaus.plexus.DefaultPlexusContainer.<init>(DefaultPlexusContainer.java:198) org.codehaus.plexus.aspect.CompatibilityAspect.ajc$interMethod$org_codehaus_plexus_aspect_CompatibilityAspect$org_codehaus_plexus_PlexusContainer$createChildContainer(CompatibilityAspect.aj:69) org.codehaus.plexus.DefaultPlexusContainer.createChildContainer(DefaultPlexusContainer.java:1) org.codehaus.plexus.aspect.CompatibilityAspect.ajc$interMethodDispatch1$org_codehaus_plexus_aspect_CompatibilityAspect$org_codehaus_plexus_PlexusContainer$createChildContainer(CompatibilityAspect.aj) org.codehaus.plexus.aspect.CompatibilityAspect.ajc$interMethod$org_codehaus_plexus_aspect_CompatibilityAspect$org_codehaus_plexus_PlexusContainer$createChildContainer(CompatibilityAspect.aj:28) org.codehaus.plexus.DefaultPlexusContainer.createChildContainer(DefaultPlexusContainer.java:1) org.codehaus.groovy.maven.runtime.loader.artifact.ArtifactProviderLoader.findContainer(ArtifactProviderLoader.java:179) org.codehaus.groovy.maven.runtime.loader.artifact.ArtifactProviderLoader.load(ArtifactProviderLoader.java:78) org.codehaus.groovy.maven.runtime.loader.artifact.ArtifactProviderLoader.load(ArtifactProviderLoader.java:72) org.codehaus.groovy.maven.runtime.loader.DefaultProviderSelector.load(DefaultProviderSelector.java:192) org.codehaus.groovy.maven.runtime.loader.DefaultProviderSelector.discover(DefaultProviderSelector.java:154) org.codehaus.groovy.maven.runtime.loader.DefaultProviderSelector.register(DefaultProviderSelector.java:98) org.codehaus.groovy.maven.runtime.loader.DefaultProviderSelector.select(DefaultProviderSelector.java:47) org.codehaus.groovy.maven.runtime.loader.DefaultProviderManager.select(DefaultProviderManager.java:91) org.codehaus.groovy.maven.plugin.ProviderMojoSupport.provider(ProviderMojoSupport.java:107) org.codehaus.groovy.maven.plugin.ComponentMojoSupport.doExecute(ComponentMojoSupport.java:58) org.codehaus.groovy.maven.plugin.MojoSupport.execute(MojoSupport.java:69) org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:579) org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:498) org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegmentForProject(DefaultLifecycleExecutor.java:265) org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:191) org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:149) org.apache.maven.DefaultMaven.execute_aroundBody0(DefaultMaven.java:223) org.apache.maven.DefaultMaven.execute_aroundBody1$advice(DefaultMaven.java:304) org.apache.maven.DefaultMaven.execute(DefaultMaven.java:1) org.apache.maven.embedder.MavenEmbedder.execute_aroundBody2(MavenEmbedder.java:904) org.apache.maven.embedder.MavenEmbedder.execute_aroundBody3$advice(MavenEmbedder.java:304) org.apache.maven.embedder.MavenEmbedder.execute(MavenEmbedder.java:1) org.jetbrains.idea.maven.embedder.MavenEmbedderWrapper.execute(MavenEmbedderWrapper.java:83) org.jetbrains.idea.maven.runner.executor.MavenEmbeddedExecutor.execute(MavenEmbeddedExecutor.java:95) org.jetbrains.idea.maven.runner.MavenRunner$2.run(MavenRunner.java:122) com.intellij.openapi.progress.impl.ProgressManagerImpl$TaskRunnable.run(ProgressManagerImpl.java:6) com.intellij.openapi.progress.impl.ProgressManagerImpl$2.run(ProgressManagerImpl.java:14) com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:65) com.intellij.openapi.progress.impl.ProgressManagerImpl.runProcess(ProgressManagerImpl.java:52) com.intellij.openapi.progress.impl.ProgressManagerImpl$6.run(ProgressManagerImpl.java:8) com.intellij.openapi.application.impl.ApplicationImpl$5.run(ApplicationImpl.java:6) java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) java.util.concurrent.FutureTask.run(FutureTask.java:138) java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907) java.lang.Thread.run(Thread.java:619) com.intellij.openapi.application.impl.ApplicationImpl$1$1.run(ApplicationImpl.java:2) [ERROR] BUILD FAILED [INFO] Mojo execution failed. 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