Monday, January 17, 2011 Error: Unresolved Webapp Library references for ServletContext

Problem in starting the EMConsole on Weblogic Server 10.3.3
Error in starting the Deployment comonent EM in WLS 10.3.3 Console
@437235777[app:em module:/em path:/em spec-version:2.5]", defined in weblogic.xml
[Extension-Name: jstl, Specification-Version: 1.2, Implementation-Version:, exact-match: false],
[Extension-Name: jstl, Specification-Version: 1.2, exact-match: false]
Errors were encountered while performing this operation.

the applications EAR had an empty lib folder, when i looked in the console to check if any jstl modules were deployed as library, i found that it was not activated.
i had the module activated and redeployed the application and it worked.