Error when opening knime

Hi Guys,
I get an error when opening KNIME, i had to force it to stop KNIME the last time a job ran (via task manager). See error log below:

!ENTRY org.eclipse.osgi 4 0 2018-07-23 19:50:41.173
!MESSAGE Application error
!STACK 1
java.lang.NoClassDefFoundError: org/eclipse/e4/ui/model/application/impl/ApplicationPackageImpl
at org.eclipse.e4.ui.internal.workbench.GenericMApplicationElementFactoryImpl$MApplicationElementClassToEClass.(GenericMApplicationElementFactoryImpl.java:137)
at org.eclipse.e4.ui.internal.workbench.GenericMApplicationElementFactoryImpl$MApplicationElementClassToEClass.(GenericMApplicationElementFactoryImpl.java:113)
at org.eclipse.e4.ui.internal.workbench.GenericMApplicationElementFactoryImpl.(GenericMApplicationElementFactoryImpl.java:72)
at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.(ModelServiceImpl.java:125)
at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createDefaultContext(E4Application.java:511)
at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createE4Workbench(E4Application.java:204)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:614)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:144)
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:388)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
Caused by: java.lang.ClassNotFoundException: An error occurred while automatically activating bundle org.eclipse.emf.ecore (569).
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:112)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:529)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:328)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:368)
at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:36)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:442)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:395)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:387)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
… 23 more
Caused by: org.osgi.framework.BundleException: Exception in org.eclipse.emf.ecore.plugin.EcorePlugin$Implementation$Activator.start() of bundle org.eclipse.emf.ecore.
at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:800)
at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:729)
at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:933)
at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:309)
at org.eclipse.osgi.container.Module.doStart(Module.java:581)
at org.eclipse.osgi.container.Module.start(Module.java:449)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:468)
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:103)
… 32 more
Caused by: java.lang.NoClassDefFoundError: org/eclipse/core/resources/ResourcesPlugin
at org.eclipse.emf.ecore.plugin.EcorePlugin.getWorkspaceRoot(EcorePlugin.java:1131)
at org.eclipse.emf.ecore.resource.impl.ExtensibleURIConverterImpl.(ExtensibleURIConverterImpl.java:393)
at org.eclipse.emf.ecore.resource.URIConverter.(URIConverter.java:739)
at org.eclipse.emf.ecore.plugin.URIMappingRegistryReader.readElement(URIMappingRegistryReader.java:72)
at org.eclipse.emf.ecore.plugin.RegistryReader.internalReadElement(RegistryReader.java:118)
at org.eclipse.emf.ecore.plugin.RegistryReader.readRegistry(RegistryReader.java:88)
at org.eclipse.emf.ecore.plugin.EcorePlugin$ExtensionProcessor.internalProcessExtensions(EcorePlugin.java:924)
at org.eclipse.emf.ecore.plugin.EcorePlugin$ExtensionProcessor.access$0(EcorePlugin.java:868)
at org.eclipse.emf.ecore.plugin.EcorePlugin$Implementation.start(EcorePlugin.java:678)
at org.eclipse.emf.common.EMFPlugin$OSGiDelegatingBundleActivator.start(EMFPlugin.java:201)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:779)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:1)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:772)
… 39 more
Caused by: java.lang.ClassNotFoundException: An error occurred while automatically activating bundle org.eclipse.core.resources (403).
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:112)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:529)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:328)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:368)
at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:36)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:442)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:395)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:387)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
… 53 more
Caused by: org.osgi.framework.BundleException: Exception in org.eclipse.core.resources.ResourcesPlugin.start() of bundle org.eclipse.core.resources.
at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:800)
at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:729)
at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:933)
at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:309)
at org.eclipse.osgi.container.Module.doStart(Module.java:581)
at org.eclipse.osgi.container.Module.start(Module.java:449)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:468)
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:103)
… 62 more
Caused by: org.eclipse.core.internal.dtree.ObjectNotFoundException: Tree element ‘/CTAS/.knimeLock’ not found.
at org.eclipse.core.internal.dtree.AbstractDataTree.handleNotFound(AbstractDataTree.java:257)
at org.eclipse.core.internal.dtree.DeltaDataTree.getData(DeltaDataTree.java:596)
at org.eclipse.core.internal.dtree.DataDeltaNode.asBackwardDelta(DataDeltaNode.java:51)
at org.eclipse.core.internal.dtree.NoDataDeltaNode.asBackwardDelta(NoDataDeltaNode.java:60)
at org.eclipse.core.internal.dtree.DataDeltaNode.asBackwardDelta(DataDeltaNode.java:48)
at org.eclipse.core.internal.dtree.DeltaDataTree.asBackwardDelta(DeltaDataTree.java:88)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:832)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:831)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:808)
at org.eclipse.core.internal.watson.ElementTree.immutable(ElementTree.java:519)
at org.eclipse.core.internal.resources.SaveManager.restore(SaveManager.java:742)
at org.eclipse.core.internal.resources.SaveManager.startup(SaveManager.java:1587)
at org.eclipse.core.internal.resources.Workspace.startup(Workspace.java:2399)
at org.eclipse.core.internal.resources.Workspace.open(Workspace.java:2156)
at org.eclipse.core.resources.ResourcesPlugin.start(ResourcesPlugin.java:467)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:779)
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:772)
… 69 more

Hi @501SCO,

can you provide some detail regarding your KNIME Analytics Platform Installation version, operating system, etc? Also, did you do an update recently?

Best,

Christian

yea I updated recently to 3.6, but was working fine the past few days. On windows 7 with i7-6700 processor @ 3.4Ghz, 64gb ram

Did you try to start KNIME in clean mode by entering knime -clean?

Yea I get the same error in clean mode, should i try re-install 3.6?

UPDATE: Re-installed 3.6, still getting the same error when loading workspace (An error has occured. See the log file)

can you try to switch the workspace and see if KNIME loads now?

Yes it opens under a new workspace ok

It seems that your workspace was somehow corrupted. Can you import the workflows from the old workspace to the new workspace?