title: org.springframework.beans.factory.parsing.BeanDefinitionParsingException
body: <p>I use STS - my web app good works.
  I import it to eclipse and I see following stackTrace:</p>
  
  <pre><code>org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Failed to import bean definitions from relative location [security_config.xml]
  Offending resource: ServletContext resource [/WEB-INF/spring/root-context.xml]; nested exception is org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springframework.org/schema/security]
  Offending resource: ServletContext resource [/WEB-INF/spring/security_config.xml]
  
      at org.springframework.beans.factory.parsing.FailFastProblemReporter.error(FailFastProblemReporter.java:68)
      at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:85)
      at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:76)
      at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.importBeanDefinitionResource(DefaultBeanDefinitionDocumentReader.java:272)
      at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseDefaultElement(DefaultBeanDefinitionDocumentReader.java:197)
      at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:182)
      at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:139)
      at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:108)
      at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:493)
      at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:390)
      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.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125)
      at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94)
      at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:130)
      at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:537)
      at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:451)
      at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
      at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
      at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
      at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4887)
      at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5381)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
      at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
      at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
      at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
      at java.util.concurrent.FutureTask.run(Unknown Source)
      at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
      at java.lang.Thread.run(Unknown Source)
  Caused by: org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springframework.org/schema/security]
  Offending resource: ServletContext resource [/WEB-INF/spring/security_config.xml]
  </code></pre>
  
  <p>I import same resources so in STS</p>
  
  <p>I am novice in spring.</p>
  
  <p>Can you explain me how to fix it ?</p>
  
  <p>my pom.xml It show version of spring framework, I use.</p>
  
  <pre><code>&lt;project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"&gt;
      &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
      &lt;groupId&gt;com.epam.hhs&lt;/groupId&gt;
      &lt;artifactId&gt;ui&lt;/artifactId&gt;
      &lt;name&gt;hhsystem ui&lt;/name&gt;
      &lt;packaging&gt;war&lt;/packaging&gt;
      &lt;version&gt;1.0.0-SNAPSHOT&lt;/version&gt;
      &lt;properties&gt;
          &lt;java-version&gt;1.6&lt;/java-version&gt;
          &lt;org.springframework-version&gt;3.2.3.RELEASE&lt;/org.springframework-version&gt;
          &lt;org.springsecurity-version&gt;3.1.3.RELEASE&lt;/org.springsecurity-version&gt;
          &lt;org.aspectj-version&gt;1.6.10&lt;/org.aspectj-version&gt;
          &lt;org.slf4j-version&gt;1.6.6&lt;/org.slf4j-version&gt;
      &lt;/properties&gt;
      &lt;dependencies&gt;
          &lt;!-- Spring --&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework&lt;/groupId&gt;
              &lt;artifactId&gt;spring-context&lt;/artifactId&gt;
              &lt;version&gt;${org.springframework-version}&lt;/version&gt;
              &lt;exclusions&gt;
                  &lt;!-- Exclude Commons Logging in favor of SLF4j --&gt;
                  &lt;exclusion&gt;
                      &lt;groupId&gt;commons-logging&lt;/groupId&gt;
                      &lt;artifactId&gt;commons-logging&lt;/artifactId&gt;
                  &lt;/exclusion&gt;
              &lt;/exclusions&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework&lt;/groupId&gt;
              &lt;artifactId&gt;spring-webmvc&lt;/artifactId&gt;
              &lt;version&gt;${org.springframework-version}&lt;/version&gt;
          &lt;/dependency&gt;
  
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework&lt;/groupId&gt;
              &lt;artifactId&gt;spring-beans&lt;/artifactId&gt;
              &lt;version&gt;${org.springframework-version}&lt;/version&gt;
          &lt;/dependency&gt;
  
          &lt;!-- Spring Security --&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework.security&lt;/groupId&gt;
              &lt;artifactId&gt;spring-security-web&lt;/artifactId&gt;
              &lt;version&gt;${org.springsecurity-version}&lt;/version&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework.security&lt;/groupId&gt;
              &lt;artifactId&gt;spring-security-config&lt;/artifactId&gt;
              &lt;version&gt;${org.springsecurity-version}&lt;/version&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework.security&lt;/groupId&gt;
              &lt;artifactId&gt;spring-security-core&lt;/artifactId&gt;
              &lt;version&gt;${org.springsecurity-version}&lt;/version&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework.security&lt;/groupId&gt;
              &lt;artifactId&gt;spring-security-taglibs&lt;/artifactId&gt;
              &lt;version&gt;${org.springsecurity-version}&lt;/version&gt;
              &lt;exclusions&gt;
                  &lt;exclusion&gt;
                      &lt;artifactId&gt;spring-aop&lt;/artifactId&gt;
                      &lt;groupId&gt;org.springframework&lt;/groupId&gt;
                  &lt;/exclusion&gt;
              &lt;/exclusions&gt;
          &lt;/dependency&gt;
  
          &lt;!-- Core --&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;com.epam.hhs&lt;/groupId&gt;
              &lt;artifactId&gt;core&lt;/artifactId&gt;
              &lt;version&gt;1.0.8-SNAPSHOT&lt;/version&gt;
          &lt;/dependency&gt;
  
          &lt;!-- AspectJ --&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.aspectj&lt;/groupId&gt;
              &lt;artifactId&gt;aspectjrt&lt;/artifactId&gt;
              &lt;version&gt;${org.aspectj-version}&lt;/version&gt;
          &lt;/dependency&gt;
  
          &lt;!-- Logging --&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.slf4j&lt;/groupId&gt;
              &lt;artifactId&gt;slf4j-api&lt;/artifactId&gt;
              &lt;version&gt;${org.slf4j-version}&lt;/version&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.slf4j&lt;/groupId&gt;
              &lt;artifactId&gt;jcl-over-slf4j&lt;/artifactId&gt;
              &lt;version&gt;${org.slf4j-version}&lt;/version&gt;
              &lt;scope&gt;runtime&lt;/scope&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.slf4j&lt;/groupId&gt;
              &lt;artifactId&gt;slf4j-log4j12&lt;/artifactId&gt;
              &lt;version&gt;${org.slf4j-version}&lt;/version&gt;
              &lt;scope&gt;runtime&lt;/scope&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;log4j&lt;/groupId&gt;
              &lt;artifactId&gt;log4j&lt;/artifactId&gt;
              &lt;version&gt;1.2.15&lt;/version&gt;
              &lt;exclusions&gt;
                  &lt;exclusion&gt;
                      &lt;groupId&gt;javax.mail&lt;/groupId&gt;
                      &lt;artifactId&gt;mail&lt;/artifactId&gt;
                  &lt;/exclusion&gt;
                  &lt;exclusion&gt;
                      &lt;groupId&gt;javax.jms&lt;/groupId&gt;
                      &lt;artifactId&gt;jms&lt;/artifactId&gt;
                  &lt;/exclusion&gt;
                  &lt;exclusion&gt;
                      &lt;groupId&gt;com.sun.jdmk&lt;/groupId&gt;
                      &lt;artifactId&gt;jmxtools&lt;/artifactId&gt;
                  &lt;/exclusion&gt;
                  &lt;exclusion&gt;
                      &lt;groupId&gt;com.sun.jmx&lt;/groupId&gt;
                      &lt;artifactId&gt;jmxri&lt;/artifactId&gt;
                  &lt;/exclusion&gt;
              &lt;/exclusions&gt;
              &lt;scope&gt;runtime&lt;/scope&gt;
          &lt;/dependency&gt;
  
          &lt;!-- @Inject --&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;javax.inject&lt;/groupId&gt;
              &lt;artifactId&gt;javax.inject&lt;/artifactId&gt;
              &lt;version&gt;1&lt;/version&gt;
          &lt;/dependency&gt;
  
          &lt;!-- Servlet --&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;javax.servlet&lt;/groupId&gt;
              &lt;artifactId&gt;servlet-api&lt;/artifactId&gt;
              &lt;version&gt;2.5&lt;/version&gt;
              &lt;scope&gt;provided&lt;/scope&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;javax.servlet.jsp&lt;/groupId&gt;
              &lt;artifactId&gt;jsp-api&lt;/artifactId&gt;
              &lt;version&gt;2.1&lt;/version&gt;
              &lt;scope&gt;provided&lt;/scope&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;javax.servlet&lt;/groupId&gt;
              &lt;artifactId&gt;jstl&lt;/artifactId&gt;
              &lt;version&gt;1.2&lt;/version&gt;
          &lt;/dependency&gt;
  
          &lt;!-- Test --&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;junit&lt;/groupId&gt;
              &lt;artifactId&gt;junit&lt;/artifactId&gt;
              &lt;version&gt;4.7&lt;/version&gt;
              &lt;scope&gt;test&lt;/scope&gt;
          &lt;/dependency&gt;
      &lt;/dependencies&gt;
  
      &lt;build&gt;
          &lt;plugins&gt;
              &lt;plugin&gt;
                  &lt;artifactId&gt;maven-eclipse-plugin&lt;/artifactId&gt;
                  &lt;version&gt;2.9&lt;/version&gt;
                  &lt;configuration&gt;
                      &lt;additionalProjectnatures&gt;
                          &lt;projectnature&gt;org.springframework.ide.eclipse.core.springnature&lt;/projectnature&gt;
                      &lt;/additionalProjectnatures&gt;
                      &lt;additionalBuildcommands&gt;
                          &lt;buildcommand&gt;org.springframework.ide.eclipse.core.springbuilder&lt;/buildcommand&gt;
                      &lt;/additionalBuildcommands&gt;
                      &lt;downloadSources&gt;true&lt;/downloadSources&gt;
                      &lt;downloadJavadocs&gt;true&lt;/downloadJavadocs&gt;
                  &lt;/configuration&gt;
              &lt;/plugin&gt;
              &lt;plugin&gt;
                  &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
                  &lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt;
                  &lt;version&gt;2.5.1&lt;/version&gt;
                  &lt;configuration&gt;
                      &lt;source&gt;1.6&lt;/source&gt;
                      &lt;target&gt;1.6&lt;/target&gt;
                      &lt;compilerArgument&gt;-Xlint:all&lt;/compilerArgument&gt;
                      &lt;showWarnings&gt;true&lt;/showWarnings&gt;
                      &lt;showDeprecation&gt;true&lt;/showDeprecation&gt;
                  &lt;/configuration&gt;
              &lt;/plugin&gt;
              &lt;plugin&gt;
                  &lt;groupId&gt;org.codehaus.mojo&lt;/groupId&gt;
                  &lt;artifactId&gt;exec-maven-plugin&lt;/artifactId&gt;
                  &lt;version&gt;1.2.1&lt;/version&gt;
                  &lt;configuration&gt;
                      &lt;mainClass&gt;org.test.int1.Main&lt;/mainClass&gt;
                  &lt;/configuration&gt;
              &lt;/plugin&gt;
          &lt;/plugins&gt;
      &lt;/build&gt;
  &lt;/project&gt;
  </code></pre>
  
  <p>security_config.xml</p>
  
  <pre><code>&lt;beans:beans xmlns="http://www.springframework.org/schema/security"
      xmlns:beans="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
      http://www.springframework.org/schema/security 
      http://www.springframework.org/schema/security/spring-security-3.1.xsd"&gt;
  
      &lt;http use-expressions="true"&gt;
          &lt;intercept-url pattern="/*" access="permitAll" /&gt;
          &lt;form-login login-page="/home.jsp"
              authentication-failure-url="/loginFailed" default-target-url="/index" /&gt;
          &lt;logout logout-success-url="/logOut" /&gt;
      &lt;/http&gt;
      &lt;authentication-manager&gt;
          &lt;authentication-provider ref="provider" /&gt;
      &lt;/authentication-manager&gt;
  &lt;/beans:beans&gt;
  </code></pre>
  
  <p>root-context.xml</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;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"
      xmlns:context="http://www.springframework.org/schema/context"
      xmlns:jee="http://www.springframework.org/schema/jee" xmlns:lang="http://www.springframework.org/schema/lang"
      xmlns:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx"
      xmlns:util="http://www.springframework.org/schema/util"
      xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
          http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
          http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
          http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
          http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
          http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd"&gt;
      &lt;!-- Root Context: defines shared resources visible to all other web components --&gt;
      &lt;!-- Настраивает управление транзакциями с помощью аннотации @Transactional --&gt;
  
      &lt;import resource="classpath:*spring/BeanConfig.xml" /&gt;
      &lt;!-- Файл с настройками Security --&gt;
      &lt;import resource="security_config.xml" /&gt;
  
  &lt;/beans&gt;
  </code></pre>