Hello,
Everything was working fine with sts 2.5.1 and now i get this error :

HTML Code:
org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Failed to import bean definitions from relative location [flex-config.xml]
Offending resource: ServletContext resource [/WEB-INF/spring/webmvc-config.xml]; nested exception is org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 12 in XML document from ServletContext resource [/WEB-INF/spring/flex-config.xml] is invalid; nested exception is org.xml.sax.SAXParseException: cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'flex:message-broker'.
Do you know where it can come from ?