Eclipse之前安装了一个插件（直接把插件的文件放到plugin目录下），现在想把这个插件卸载掉，但是把文件删除后，eclipse不能正常启动了，出现如下错误，怎么做可以把插件去掉，而不影响eclipse的使用

!SESSION 2013-05-09 12:24:18.765 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.5.0_05
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=zh_CN
Command-line arguments:  -os win32 -ws win32 -arch x86 -clean

!ENTRY org.eclipse.update.configurator 4 0 2013-05-09 12:24:20.437
!MESSAGE Unable to find feature.xml in directory: D:\MyProgram\eclipse\features\org.tigris.subversion.subclipse_1.0.6.jar

!ENTRY org.eclipse.update.configurator 4 0 2013-05-09 12:24:21.578
!MESSAGE Unable to find feature.xml in directory: D:\MyProgram\eclipse\features\org.tigris.subversion.subclipse_1.0.6.jar

!ENTRY org.eclipse.equinox.app 0 0 2013-05-09 12:24:30.109
!MESSAGE Product org.ji.studio.core.report could not be found.

!ENTRY org.eclipse.osgi 4 0 2013-05-09 12:24:30.156
!MESSAGE Application error
!STACK 1
java.lang.RuntimeException: No application id has been found.
 at org.eclipse.equinox.internal.app.EclipseAppContainer.startDefaultApp(EclipseAppContainer.java:236)
 at org.eclipse.equinox.internal.app.MainApplicationLauncher.run(MainApplicationLauncher.java:29)
 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:386)
 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:585)
 at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
 at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
 at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
 at org.eclipse.equinox.launcher.Main.main(Main.java:1212)