Geeks, Save the foot soldier. Trying to make Seam+Spring+Hibernate app, getting the below error, name space lookup problem. Pls. help. 12:01:15,765 INFO [STDOUT] 12:01:15,750 ERROR [[/prevea]] Exception sending context initialized event to listener instance of class org.jboss.seam.servlet.SeamListener org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate NamespaceHandler for namespace [http://jboss.com/products/seam/spring-seam] Offending resource: ServletContext resource [/WEB-INF/applicationContext.xml] at org.springframework.beans.factory.parsing.FailFastProblemReporter.error(FailFastProblemReporter.java:59) at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:64) at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:55) at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1144) at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1137) at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:143) at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions blah blah blah..... My applicationContext.xml is <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:util="http://www.springframework.org/schema/util" xmlns:seam="http://jboss.com/products/seam/spring-seam" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.0.xsd http://jboss.com/products/seam/spring-seam http://jboss.com/products/seam/spring-seam-1.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd" default-lazy-init="true"> <!-- Spring Data Access Exception Translator Defintion --> <seam:configure-scopes /> <seam:instance id="hbmSessionFactory" name="hibernateSessionFactory" proxy="true"/> <seam:instance id="pDS" name="preveaDatasource" proxy="true"/> View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4034879#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...