eclipse里 TOMCAT5.5 不能启动 错误提示如下 为什么
java.lang.NoClassDefFoundError: org/apache/juli/logging/LogFactory
at org.apache.catalina.core.StandardService.<clinit>(StandardService.java:56)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
at java.lang.Class.newInstance0(Class.java:350)
at java.lang.Class.newInstance(Class.java:303)
at org.apache.catalina.startup.Bootstrap.init(Bootstrap.java:225)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:410)

------解决方案--------------------
缺jar包吧。commons-logging-1.1.1.jar
------解决方案--------------------
少架包吧java.lang.NoClassDefFoundError: org/apache/juli/logging/LogFactory