Bonjour,

J'utilise le plugin WindowBuilder Pro sous Eclipse Juno 4.2 et lorsque j'ouvre une interface graphique existante, créée en utilisant ce plugin, l'erreur suivante se produit :
WindowBuilder error
No detailed description found for error (1100).

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Stack trace:
org.eclipse.wb.internal.core.utils.exception.DesignerException: 1100 (No description).
at org.eclipse.wb.internal.layout.group.model.GroupLayoutCodeSupport.parse(GroupLayoutCodeSupport.java:100)
at org.eclipse.wb.internal.layout.group.model.GroupLayoutSupport.parse(GroupLayoutSupport.java:184)
at org.eclipse.wb.internal.layout.group.model.GroupLayoutSupport$2.bindComponents(GroupLayoutSupport.java:91)
at sun.reflect.GeneratedMethodAccessor200.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.wb.core.model.broadcast.BroadcastSupport$1.intercept(BroadcastSupport.java:208)
at org.eclipse.wb.core.model.broadcast.JavaEventListener$$EnhancerByCGLIB$$d24f3255.bindComponents(<generated>)
at org.eclipse.wb.internal.core.parser.JavaInfoParser.getRoot(JavaInfoParser.java:404)
at org.eclipse.wb.internal.core.parser.JavaInfoParser.parseRootMethods(JavaInfoParser.java:322)
at org.eclipse.wb.internal.core.parser.JavaInfoParser.parse(JavaInfoParser.java:268)
at org.eclipse.wb.internal.core.parser.JavaInfoParser.access$9(JavaInfoParser.java:238)
at org.eclipse.wb.internal.core.parser.JavaInfoParser$1.runObject(JavaInfoParser.java:153)
at org.eclipse.wb.internal.core.parser.JavaInfoParser$1.runObject(JavaInfoParser.java:1)
at org.eclipse.wb.internal.core.utils.execution.ExecutionUtils.runDesignTime(ExecutionUtils.java:159)
at org.eclipse.wb.internal.core.parser.JavaInfoParser.parse(JavaInfoParser.java:151)
at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF(DesignPage.java:534)
at org.eclipse.wb.internal.core.editor.DesignPage.access$9(DesignPage.java:522)
at org.eclipse.wb.internal.core.editor.DesignPage$8$1.run(DesignPage.java:449)
at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:180)
at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150)
at org.eclipse.swt.widgets.Display.syncExec(Display.java:4683)
at org.eclipse.wb.internal.core.editor.DesignPage$8.run(DesignPage.java:446)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:507)
at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF_withProgress(DesignPage.java:465)
at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF(DesignPage.java:415)
at org.eclipse.wb.internal.core.editor.UndoManager.refreshDesignerEditor(UndoManager.java:381)
at org.eclipse.wb.internal.core.editor.UndoManager.activate(UndoManager.java:90)
at org.eclipse.wb.internal.core.editor.DesignPage.handleActiveState_True(DesignPage.java:263)
at org.eclipse.wb.internal.core.editor.DesignPage.handleActiveState(DesignPage.java:241)
at org.eclipse.wb.internal.core.editor.multi.DefaultMultiMode.showPage(DefaultMultiMode.java:125)
at org.eclipse.wb.internal.core.editor.multi.DefaultMultiMode$1.widgetSelected(DefaultMultiMode.java:63)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:774)
at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:2746)
at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1433)
at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:257)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
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:344)
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:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
Caused by: java.lang.NullPointerException
at org.eclipse.wb.internal.swing.java6.model.SwingGroupLayoutCodeSupport.convertPadding(SwingGroupLayoutCodeSupport.java:229)
at org.eclipse.wb.internal.swing.java6.model.SwingGroupLayoutCodeSupport.setPaddingType(SwingGroupLayoutCodeSupport.java:211)
at org.eclipse.wb.internal.layout.group.model.GroupLayoutParserVisitor2.endVisit(GroupLayoutParserVisitor2.java:183)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:247)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2562)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:240)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2562)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:240)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2562)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:240)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2562)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:240)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2585)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:245)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2562)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:240)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2585)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:245)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2562)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:240)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2585)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:245)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2562)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:240)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2562)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:240)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2585)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:245)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2585)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:245)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2585)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:245)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.wb.internal.layout.group.model.GroupLayoutCodeSupport.parseGroup(GroupLayoutCodeSupport.java:119)
at org.eclipse.wb.internal.layout.group.model.GroupLayoutCodeSupport.parse(GroupLayoutCodeSupport.java:97)
... 66 more
Quelqu'un aurait une idée sur le problème ?

Merci d'avance pour votre aide