Error...!!!

hi...i am creating a new dynamic web project on eclipse 3.2 and using java 1.5

when i am creating a new project that's cool and can run the jsp on tomcat(5.0) ..but my web.xml showing the error on validating it....i can't understand...can anybody help me..

Referenced file contains errors (http://www.ibm.com/webservices/xsd/j2ee_web_services_client_1_1.xsd). For more information, right click on the message and select "Show Details..."

[458 byte] By [debduttaa] at [2007-11-26 17:35:11]