java parse error web.xml in tomcat

Java parse error web.xml in tomcat


Hi Guys,

Here i want to share some experience about basic error which we will get frequently.....
I have created one web application using servlet and jsp. And i exported that project into war file and i deployed in tomcat 6.0. the application is not deploying and when i try to run from browser its showing "requested resource not found".... i dont know what thats the problem. i cant figure it out.... after trial and error method, i just came to know i created that project in Servlet3.0 version. so Tomcat 6.0 is not supporting that... thats why i got that error. after i changed into servlet 2.3 version its worked fine.