Myeclipse下的jsf问题

org.eclipse.ui.PartInitException: Project 'gdyj_ww' is not configured as a MyEclipse Web-JSF Project. Therefore the MyEclipse JSF Config Editor may not be used with jsf_ylqxjgxt.xml.  The default XML Editor has been used to open the file instead.
at com.genuitec.eclipse.jsf.editor.multipage.JSFConfigEditor.init(JSFConfigEditor.java:161)
at org.eclipse.ui.internal.EditorManager.createSite(EditorManager.java:794)
at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:643)
at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:426)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:592)
at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:263)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2721)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2633)
at org.eclipse.ui.internal.WorkbenchPage.access$12(WorkbenchPage.java:2625)
at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2577)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2572)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2556)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2547)
at org.eclipse.ui.ide.IDE.openEditor(IDE.java:644)
at org.eclipse.ui.ide.IDE.openEditor(IDE.java:603)
……下略