Hi,
i created a workflow in KNIME a few months ago using version 2.5.4. Everything was ok, but one day, i couldn't open that workflow anymore. My workflow (the directory its in) is under version control, and nothing has changed. But now, everytime i try to open that workflow in knime, i get this error message, which does not tell me anything useful:
java.lang.RuntimeException: java.io.IOException: No valid XML file at org.knime.workbench.editor2.WorkflowEditor.setInput(WorkflowEditor.java:858) at org.knime.workbench.editor2.WorkflowEditor.init(WorkflowEditor.java:351) at org.eclipse.ui.internal.EditorManager.createSite(EditorManager.java:798) at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:647) at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:465) at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595) at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:289) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2863) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2768) at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2760) at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2711) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2707) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2691) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2674) at org.eclipse.ui.ide.IDE.openEditorOnFileStore(IDE.java:1155) at org.knime.workbench.ui.navigator.KnimeResourceNavigator.handleOpen(KnimeResourceNavigator.java:478) at org.knime.workbench.ui.navigator.KnimeResourceNavigator$3.handleDoubleSelect(KnimeResourceNavigator.java:311) at org.eclipse.jface.viewers.StructuredViewer$4.widgetDefaultSelected(StructuredViewer.java:1225) at org.eclipse.jface.util.OpenStrategy.fireDefaultSelectionEvent(OpenStrategy.java:238) at org.eclipse.jface.util.OpenStrategy.access$0(OpenStrategy.java:235) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:296) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3540) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3161) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:126) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574) at org.eclipse.equinox.launcher.Main.run(Main.java:1407) at org.eclipse.equinox.launcher.Main.main(Main.java:1383) Caused by: java.io.IOException: No valid XML file at org.knime.core.node.config.base.XMLConfig.load(XMLConfig.java:135) at org.knime.core.node.config.Config.load(Config.java:940) at org.knime.core.node.config.Config.loadFromXML(Config.java:928) at org.knime.core.node.NodeSettings.loadFromXML(NodeSettings.java:108) at org.knime.core.node.workflow.WorkflowManager.createLoadPersistor(WorkflowManager.java:5529) at org.knime.core.node.workflow.WorkflowManager.load(WorkflowManager.java:5633) at org.knime.core.node.workflow.WorkflowManager.loadProject(WorkflowManager.java:5426) at org.knime.workbench.editor2.LoadWorkflowRunnable.run(LoadWorkflowRunnable.java:162) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Something seems to be wrong with a xml file. Therefore, i validated all xml files in that folder with xmllint -- they are all parsed without problems. Does anyone know what this means? Only this workflow is affected, but it also happens if i import it to various knime 2.5.4 installs (linux, windows, 32 and 64 bit versions).
Any help on this is much appreciated, because otherwise i will have to parse through the xml files by myself to reconstruct the workflow.
Best regards,
drm