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Plug-in net.sourceforge.veditor was unable to load class net.sourceforge.veditor.editor.VerilogEditor.
java.lang.ClassNotFoundException: org.scalaide.core.IScalaPlugin$ cannot be found by 
 org.scala-ide.play2_0.4.5.v-2_11-201410211329-719d42a	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:432)	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:345)	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:337)	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)	at java.lang.ClassLoader.loadClass(Unknown Source)	at org.scalaide.play2.PlayPlugin.asPlayProject(PlayPlugin.scala:51)	at org.scalaide.play2.PlayPlugin$$anonfun$initializeProjects$2.apply(PlayPlugin.scala:59)	at org.scalaide.play2.PlayPlugin$$anonfun$initializeProjects$2.apply(PlayPlugin.scala:57)	at scala.collection.TraversableLike$WithFilter$$anonfun$foreach$1.apply(TraversableLike.scala:778)	at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)	at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186)	at scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:777)	at org.scalaide.play2.PlayPlugin.initializeProjects(PlayPlugin.scala:57)	at org.scalaide.play2.PlayPlugin.start(PlayPlugin.scala:42)	at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:771)	at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:1)	at java.security.AccessController.doPrivileged(Native Method)	at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:764)	at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:721)	at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:936)	at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:319)	at org.eclipse.osgi.container.Module.doStart(Module.java:571)	at org.eclipse.osgi.container.Module.start(Module.java:439)	at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:454)	at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)	at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:531)	at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:324)	at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:320)	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:395)	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:345)	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:337)	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)	at java.lang.ClassLoader.loadClass(Unknown Source)	at org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:568)	at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:174)	at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)	at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)	at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)	at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:294)	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)	at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:289)	at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceNode.createPage(WorkbenchPreferenceNode.java:48)	at org.eclipse.jface.preference.PreferenceDialog.createPage(PreferenceDialog.java:1372)	at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.createPage(FilteredPreferenceDialog.java:385)	at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1259)	at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:699)	at org.eclipse.jface.preference.PreferenceDialog$9$1.run(PreferenceDialog.java:730)	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)	at org.eclipse.jface.preference.PreferenceDialog$9.selectionChanged(PreferenceDialog.java:725)	at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:876)	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50)	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:178)	at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:873)	at org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1217)	at org.eclipse.jface.viewers.StructuredViewer$5.widgetSelected(StructuredViewer.java:1243)	at org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:265)	at org.eclipse.jface.util.OpenStrategy.access$5(OpenStrategy.java:259)	at org.eclipse.jface.util.OpenStrategy$1$2.run(OpenStrategy.java:440)	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136)	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4147)	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3764)	at org.eclipse.jface.window.Window.runEventLoop(Window.java:832)	at org.eclipse.jface.window.Window.open(Window.java:808)	at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceDialog.open(WorkbenchPreferenceDialog.java:221)	at org.eclipse.ui.internal.OpenPreferencesAction.run(OpenPreferencesAction.java:66)	at org.eclipse.jface.action.Action.runWithEvent(Action.java:519)	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:595)	at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:511)	at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:420)	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4353)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1061)	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4172)	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151)	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636)	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)	at org.eclipse.equinox.launcher.Main.run(Main.java:1465)