i developed a web application using eclipse-ganymede,Tomcat 5.5,tiles-api-2.0.4.jar and antlr-2.7.2.jar which was worked fine in this environment.Recently i upgraded to eclipse-helios and tomcat 7 but now my application is not working fine getting the following error in the console
INFO: Server startup in 3855 ms
Apr 12, 2011 1:15:25 PM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.NoSuchFieldError: STANDARD_IMPORTS Apr 12, 2011 1:15:25 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [default] in context with path [/Project_Name] threw exception [org.apache.tiles.TilesException: Error including path '/content/jsp/layouts/bifrontLayout.jsp'. java.lang.NoSuchFieldError: STANDARD_IMPORTS] with root cause
java.io.IOException: Error including path '/content/jsp/layouts/bifrontLayout.jsp'. java.lang.NoSuchFieldError: STANDARD_IMPORTS
Can any one help me to resolve this?
Thanks in advance.