Spring AOP: "no declaration can be found for element 'aop:config' "

Question

I've seen that a few instances of this problem have been raised already. However, I am confident that I satisfy the criteria that has been outlined in those solutions. i.e. I'm pretty sure I have the desired jars on my class path + my schemalocation addresses look in order.

One solution mentioned that the issue can be caused by having another XML parser on the classpath. I do have dom4j on my classpath but I have removed it to test, and the problem persists.

Here's my classpath:

<?xml version="1.0" encoding="UTF-8"?>
<classpath>
    <classpathentry kind="src" path="src"/>
    <classpathentry kind="src" path="test"/>
    <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/mysql-connector-java-5.1.18-bin.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/jaxen-1.1.3.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.aop-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.asm-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.aspects-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.beans-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.context.support-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.context-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.core-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.expression-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.instrument.tomcat-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.instrument-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.jdbc-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.jms-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.orm-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.oxm-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.test-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.transaction-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.web.portlet-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.web.servlet-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.web.struts-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/org.springframework.web-3.1.0.RC1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/log4j-1.2.16.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/commons-logging-1.1.1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/spring-mvc-airline/WebContent/WEB-INF/lib/junit-4.9b2.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/mybatis-3.1.0-SNAPSHOT.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/mybatis-spring-1.1.0.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/lambdaj-2.4.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/cglib-2.2.2.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/aspectj-1.6.12.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/aspectjrt-1.5.4.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/dom4j-1.6.1.jar"/>
    <classpathentry kind="lib" path="C:/Users/user/workspace/rugby-project/lib/spring-aop-3.0.3.RELEASE.jar"/>
    <classpathentry kind="output" path="bin"/>
</classpath>

And here's my xml:

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
        http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <bean id="timer" class="ie.ucd.dec.al.rugby.aop.Timer" />

    <aop:config>
        <aop:aspect ref="timer">
            <aop:pointcut id="migrationManager_migrate"
                expression="execution(* ie.ucd.dec.al.rugby.data.migrate.MigrationManager.migrateAllXmlFilesInDirectory())" />

            <aop:around pointcut-ref="migrationManager_migrate"
                method="timeJob()" />
        </aop:aspect>

    </aop:config>

</beans>

Finally, here is my stacktrace:

Exception in thread "main"
org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 15 in XML document from class path resource [spring-aop.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 'aop:config'.
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:396)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:174)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:209)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:180)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:243)
    at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:127)
    at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:93)
    at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:131)
    at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:522)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:436)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
    at ie.ucd.dec.al.rugby.data.migrate.MigrationRunner.main(MigrationRunner.java:10)
Caused by: org.xml.sax.SAXParseException: cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'aop:config'.
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(UnknownSource)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator$XSIErrorReporter.reportError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.reportSchemaError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStartElement(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.startElement(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
    at org.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:75)
    at 

Hope someone can help.

Thanks!

Answer 1

The order of xsi:schemaLocation items is wrong, each namespace URI should be followed by its XSD location:

xsi:schemaLocation="
     http://www.springframework.org/schema/beans             
     http://www.springframework.org/schema/beans/spring-beans-3.0.xsd         
     http://www.springframework.org/schema/context
     http://www.springframework.org/schema/context/spring-context-3.0.xsd          
     http://www.springframework.org/schema/aop         
     http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"