I was about to submit the following as a bug, but I'm not too sure if I'm using GPD as expected. So: is GPD 3.1.0.alpha2 supposed to be backwards compatible with 3.0.13.1? And which versions of Eclipse are supported? The websales example as shipped with http://downloads.sourceforge.net/jbpm/jbpm-jpdl-suite-3.2.Beta2.zip (2007-02-06), which includes jBPM Designer Plugin 3.0.13.1, cannot be opened in http://downloads.sourceforge.net/jbpm/jbpm-jpdl-designer-3.1.0.alpha2.zip that was released 4 days earlier (2007-02-02). Trying to open the example first shows the error below. When retrying one will eventually see the diagram, but any transitions are not drawn. Manually adding any new component and saving the diagram results in the root element <process-diagram> in gpd.xml being replaced with <root-container>, at which point a lot of information seems to be lost (the new gpd.xml is a lot smaller than the version supplied with the sample code). The very same websales example is handled fine with jBPM Designer Plugin 3.0.13.1. To test 3.1.0.alpha2 I extracted a fresh copy of jbpm-jpdl-suite-3.2.Beta2.zip, then replaced \designer\eclipse\features and \designer\eclipse\plugins with the contents of 3.1.0.alpha2, and unzipped http://repository.jboss.com/eclipse/sdk/3.2/eclipse-SDK-3.2-win32.zip into \designer\eclipse. The same results, without any errors in the error log though, for Eclipse 3.2.1, M20060921-0945. Environment: Eclipse 3.2.0 (M20060629-1905) or 3.2.1 (M20060921-0945), GPD 3.1.0.alpha2, JDK 1.5.0_11, WinXP, Error log: eclipse.buildId=M20060629-1905 java.version=1.5.0_11 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US Command-line arguments: -os win32 -ws win32 -arch x86 -data ../workspace Error Thu Feb 15 16:50:29 CET 2007 Could not create graphical viewer org.eclipse.ui.PartInitException: Error reading contents of file : gpd.xml. at org.jbpm.gd.jpdl.ui.editor.JpdlContentProvider.addGraphicalInfo(Unknown Source) at org.jbpm.gd.jpdl.ui.editor.JpdlGraphicalEditorPage.initInput(Unknown Source) at org.jbpm.gd.jpdl.ui.editor.JpdlGraphicalEditorPage.init(Unknown Source) at org.eclipse.ui.part.MultiPageEditorPart.addPage(MultiPageEditorPart.java:179) at org.jbpm.gd.jpdl.ui.editor.JpdlEditor.addGraphPage(Unknown Source) at org.jbpm.gd.jpdl.ui.editor.JpdlEditor.createPages(Unknown Source) at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:276) at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:596) at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:372) at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:566) at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:290) at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:140) at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:268) at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65) at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:394) at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1144) at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1097) at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1311) at org.eclipse.ui.internal.PartStack.add(PartStack.java:455) at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:102) at org.eclipse.ui.internal.PartStack.add(PartStack.java:441) at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:111) at org.eclipse.ui.internal.EditorSashContainer.addEditor(EditorSashContainer.java:60) at org.eclipse.ui.internal.EditorAreaHelper.addToLayout(EditorAreaHelper.java:217) at org.eclipse.ui.internal.EditorAreaHelper.addEditor(EditorAreaHelper.java:207) at org.eclipse.ui.internal.EditorManager.createEditorTab(EditorManager.java:819) at org.eclipse.ui.internal.EditorManager.openEditorFromDescriptor(EditorManager.java:718) at org.eclipse.ui.internal.EditorManager.openEditor(EditorManager.java:679) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2586) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2521) at org.eclipse.ui.internal.WorkbenchPage.access$10(WorkbenchPage.java:2513) at org.eclipse.ui.internal.WorkbenchPage$9.run(WorkbenchPage.java:2498) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2493) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2478) at org.eclipse.ui.ide.IDE.openEditor(IDE.java:388) at org.eclipse.ui.ide.IDE.openEditor(IDE.java:350) at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:275) at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:139) at org.eclipse.jdt.internal.ui.actions.OpenActionUtil.open(OpenActionUtil.java:49) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:190) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:174) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:267) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:243) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerActionGroup.handleOpen(PackageExplorerActionGroup.java:306) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$4.open(PackageExplorerPart.java:651) at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:817) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37) at org.eclipse.core.runtime.Platform.run(Platform.java:843) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:44) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:149) at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:815) at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1069) at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1168) at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:249) at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:243) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:283) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:928) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3348) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2968) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1914) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1878) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:419) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:95) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177) 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.core.launcher.Main.invokeFramework(Main.java:336) at org.eclipse.core.launcher.Main.basicRun(Main.java:280) at org.eclipse.core.launcher.Main.run(Main.java:977) at org.eclipse.core.launcher.Main.main(Main.java:952) eclipse.buildId=M20060629-1905 java.version=1.5.0_11 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US Command-line arguments: -os win32 -ws win32 -arch x86 -data ../workspace Error Thu Feb 15 16:50:29 CET 2007 Error reading contents of file : gpd.xml.[/url] View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4017130#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...