TagLib tag in web.xml is not found ERROR

Question

I show the error in detail as follows.

 cvc-complex-type.2.4.a: Invalid content was found starting with element 'taglib'. One of '{"http://java.sun.com/xml/ns/javaee":description,"http://java.sun.com/xml/ns/javaee":display-name, "http://java.sun.com/xml/ns/javaee":icon,"http://java.sun.com/xml/ns/javaee":distributable"http:// java.sun.com/xml/ns/javaee":context-param, "http://java.sun.com/xml/ns/javaee":filter, "http://
 java.sun.com/xml/ns/javaee":filter-mapping, "http://java.sun.com/xml/ns/javaee":listener,"http:// java.sun.com/xml/ns/javaee":servlet, "http://java.sun.com/xml/ns/javaee":servlet-mapping, "http://java.sun.com/xml/ns/javaee":session-config, "http://java.sun.com/xml/ns/javaee":mime-mapping, 
 "http://java.sun.com/xml/ns/javaee":welcome-file-list, "http://java.sun.com/xml/ns/javaee":error-
 page, "http://java.sun.com/xml/ns/javaee":jsp-config, "http://java.sun.com/xml/ns/javaee":security-
 constraint, "http://java.sun.com/xml/ns/javaee":login-config, "http://java.sun.com/xml/ns/
 javaee":security-role, "http://java.sun.com/xml/ns/javaee":env-entry, "http://java.sun.com/xml/ns/
 javaee":ejb-ref, "http://java.sun.com/xml/ns/javaee":ejb-local-ref, "http://java.sun.com/xml/ns/
 javaee":service-ref, "http://java.sun.com/xml/ns/javaee":resource-ref, "http://java.sun.com/xml/ns/
 javaee":resource-env-ref, "http://java.sun.com/xml/ns/javaee":message-destination-ref, "http://
 java.sun.com/xml/ns/javaee":persistence-context-ref, "http://java.sun.com/xml/ns/
 javaee":persistence-unit-ref, "http://java.sun.com/xml/ns/javaee":post-construct, "http://
 java.sun.com/xml/ns/javaee":pre-destroy, "http://java.sun.com/xml/ns/javaee":message-
 destination, "http://java.sun.com/xml/ns/javaee":locale-encoding-mapping-list}' is expected.

Add web.xml

  <?xml version="1.0" encoding="UTF-8"?>
  <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">

<display-name>Hello World Struts Application</display-name>

<servlet>
    <servlet-name>action</servlet-name>
    <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
    <init-param>
        <param-name>config</param-name>
        <param-value>/WEB-INF/struts-config.xml</param-value>
    </init-param>
    <init-param>
        <param-name>debug</param-name>
        <param-value>3</param-value>
    </init-param>
    <init-param>
         <param-name>detail</param-name>
         <param-value>3</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>action</servlet-name>
    <url-pattern>*.do</url-pattern>
</servlet-mapping>


<welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
</welcome-file-list>

<taglib>
    <taglib-uri>/WEB-INF/struts-html.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-html.tld</taglib-location>
</taglib>

<taglib>
    <taglib-uri>/WEB-INF/struts-bean.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-bean.tld</taglib-location>
</taglib>

<taglib>
    <taglib-uri>/WEB-INF/struts-logic.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-logic.tld</taglib-location>
</taglib>

<taglib>
    <taglib-uri>/WEB-INF/struts-tiles.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-tiles.tld</taglib-location>
</taglib>

</web-app>

Answer 1

Modify your web.xml so that all the taglib tags are contained in jsp-config tag. i.e:

 <jsp-config>
     <taglib>
         <taglib-uri></taglib-uri>
         <taglib-location></taglib-location>
     </taglib>
 </jsp-config>