我的eclipse与tomcat连接时报如下的错误，是什么原因呢？请大家多多指教，不胜感激！
安装信息：
1. tomcat测试通过了,可以显示管理页面
2. 我的 tomcat版本是tomcat5.5
3. Eclipse的版本是 3.2.2
4. MyEclipse版本是 5.5
5. 直接启动tomcat，能正常启动
下面是错误日志 ：
2007-6-13 23:23:00 org.apache.catalina.core.StandardContext start
严重: Error in resourceStart()
2007-6-13 23:23:00 org.apache.catalina.core.StandardContext start
严重: Error getConfigured
2007-6-13 23:23:00 org.apache.catalina.core.StandardContext start
严重: Context [/admin] startup failed due to previous errors
2007-6-13 23:23:00 org.apache.catalina.core.StandardContext stop
信息: Container org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/admin] has not been started
2007-6-13 23:24:14 org.apache.coyote.http11.Http11AprProtocol pause
信息: Pausing Coyote HTTP/1.1 on http-80
2007-6-13 23:24:14 org.apache.coyote.ajp.AjpAprProtocol pause
信息: Pausing Coyote AJP/1.3 on ajp-8009
2007-6-13 23:24:15 org.apache.catalina.core.StandardService stop
信息: Stopping service Catalina
2007-6-13 23:24:15 org.apache.coyote.http11.Http11AprProtocol destroy
信息: Stopping Coyote HTTP/1.1 on http-80
2007-6-13 23:24:15 org.apache.coyote.ajp.AjpAprProtocol destroy
信息: Stopping Coyote AJP/1.3 on ajp-8009
2007-6-13 23:24:22 org.apache.coyote.http11.Http11AprProtocol init
信息: Initializing Coyote HTTP/1.1 on http-80
2007-6-13 23:24:22 org.apache.coyote.ajp.AjpAprProtocol init
信息: Initializing Coyote AJP/1.3 on ajp-8009
2007-6-13 23:24:22 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 906 ms
2007-6-13 23:24:22 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2007-6-13 23:24:22 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/5.5.23
2007-6-13 23:24:22 org.apache.catalina.core.StandardHost start
信息: XML validation disabled
2007-6-13 23:24:22 org.apache.catalina.core.StandardContext resourcesStart
严重: Error starting static Resources
java.lang.IllegalArgumentException: Document base C:\Program Files\Apache Software Foundation\Tomcat 5.5\server\webapps\admin does not exist or is not a readable directory
at org.apache.naming.resources.FileDirContext.setDocBase(FileDirContext.java:141)
at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:3855)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4024)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:760)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:544)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:626)
at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:553)