eclipse中安装了phpeclipse插件，但打不开.php类型的文件
双击.php类型的文件时，提示An error has occurred.See error log for more details.
日志如下：
ENTRY org.eclipse.jface 4 2 2010-06-20 00:40:57.265
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.jface".
!STACK 0
java.lang.NoClassDefFoundError: org/eclipse/ui/ide/FileStoreEditorInput
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:157)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:759)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHan0:46 2010-6-20dle.createExecutableExtension(ConfigurationElementHandle.java:51)
at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:234)
at org.eclipse.ui.internal.registry.EditorDescriptor.createEditor(EditorDescriptor.java:231)
at org.eclipse.ui.internal.EditorManager.createPart(EditorManager.java:909)
at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:549)
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.EditorReference.getEditor(EditorReference.java:214)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2595)
......
但是我eclipse的plugins里有org.eclipse.jface的包啊
