Issue with Apache Tiles

[mahesh_yamsani]

We are working on DM Server Web Project with the Integration of Apache tiles using Spring3.0 m4 and we are getting the following exception at the time of deployment

Can any one help me in solving this issue

I am enclosing my log file as an attachment

Caused by: java.lang.NoClassDefFoundError: org/springframework/core/io/support/ResourcePatternResolver
at org.apache.tiles.servlet.context.wildcard.Wildcard ServletTilesApplicationContextFactory.createApplic ationContext(WildcardServletTilesApplicationContex tFactory.java:50)
at org.apache.tiles.startup.BasicTilesInitializer.cre ateTilesApplicationContext(BasicTilesInitializer.j ava:71)
at org.apache.tiles.startup.BasicTilesInitializer.ini tialize(BasicTilesInitializer.java:51)
at org.springframework.web.servlet.view.tiles2.TilesC onfigurer.afterPropertiesSet(TilesConfigurer.java: 196)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.invokeInitMethods(Abstr actAutowireCapableBeanFactory.java:1452)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.initializeBean(Abstract AutowireCapableBeanFactory.java:1390)
... 126 common frames omitted