IntelliJ Clover error

com/intellij/util/ui/treetable/ListTreeTableModelOnColumns: com/intellij/util/ui/treetable/ListTreeTableModelOnColumns
java.lang.NoClassDefFoundError: com/intellij/util/ui/treetable/ListTreeTableModelOnColumns
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at java.lang.ClassLoader.defineClass(ClassLoader.java:466)
at com.intellij.util.lang.UrlClassLoader._defineClass(UrlClassLoader.java:123)
at com.intellij.util.lang.UrlClassLoader.defineClass(UrlClassLoader.java:119)
at com.intellij.util.lang.UrlClassLoader._findClass(UrlClassLoader.java:95)
at com.intellij.ide.plugins.cl.PluginClassLoader.loadClassInsideSelf(PluginClassLoader.java:94)
at com.intellij.ide.plugins.cl.PluginClassLoader.loadClass(PluginClassLoader.java:57)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at com.cenqua.clover.idea.treetables.TreeTableModelFactory.getSortableListTreeTableModelOnColumns(TreeTableModelFactory.java:72)
at com.cenqua.clover.idea.treetables.TreeTableModelFactory.getCoverageTreeTableModel(TreeTableModelFactory.java:59)
at com.cenqua.clover.idea.coverageview.CoverageViewPanel.<init>(CoverageViewPanel.java:93)
at com.cenqua.clover.idea.CloverToolWindow.getCoveragePane(CloverToolWindow.java:180)
at com.cenqua.clover.idea.CloverToolWindow.initComponents(CloverToolWindow.java:111)
at com.cenqua.clover.idea.CloverToolWindow.<init>(CloverToolWindow.java:67)
at com.cenqua.clover.idea.CloverToolWindow.getInstance(CloverToolWindow.java:57)
at com.cenqua.clover.idea.ProjectPlugin.projectPostStartup(ProjectPlugin.java:112)
at com.cenqua.clover.idea.ProjectPlugin$1.run(ProjectPlugin.java:79)
at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:757)
at com.intellij.ide.startup.impl.StartupManagerImpl$4.run(StartupManagerImpl.java:199)
at com.intellij.ide.startup.impl.StartupManagerImpl.a(StartupManagerImpl.java:174)
at com.intellij.ide.startup.impl.StartupManagerImpl.access$100(StartupManagerImpl.java:39)
at com.intellij.ide.startup.impl.StartupManagerImpl$2.run(StartupManagerImpl.java:143)
at com.intellij.openapi.project.DumbServiceImpl.runWhenSmart(DumbServiceImpl.java:85)
at com.intellij.ide.startup.impl.StartupManagerImpl.runPostStartupActivities(StartupManagerImpl.java:140)
at com.intellij.openapi.project.impl.ProjectManagerImpl.openProject(ProjectManagerImpl.java:393)
at com.intellij.openapi.project.impl.ProjectManagerImpl.loadAndOpenProject(ProjectManagerImpl.java:433)
at com.intellij.openapi.project.impl.ProjectManagerImpl.loadAndOpenProject(ProjectManagerImpl.java:416)
at com.intellij.ide.impl.ProjectUtil.openProject(ProjectUtil.java:194)
at com.intellij.ide.RecentProjectsManager.doOpenProject(RecentProjectsManager.java:48)
at com.intellij.ide.RecentProjectsManagerBase$ReopenProjectAction.actionPerformed(RecentProjectsManagerBase.java:232)
at com.intellij.ui.popup.PopupFactoryImpl$ActionPopupStep$1.run(PopupFactoryImpl.java:482)
at com.intellij.openapi.wm.impl.FocusManagerImpl.c(FocusManagerImpl.java:406)
at com.intellij.openapi.wm.impl.FocusManagerImpl.doWhenFocusSettlesDown(FocusManagerImpl.java:346)