title: Referenced file contain errors in STS
body: <p>I setup an environment STS 4,0 and import a project. In Web-INF folder it gives such error: </p>
  
  <blockquote>
    <p>Referenced file contains errors (<a href="http://www.ibm.com/webservices/xsd/j2ee_web_services_client_1_1.xsd" rel="nofollow noreferrer">http://www.ibm.com/webservices/xsd/j2ee_web_services_client_1_1.xsd</a>). For more information, 
     right click on the message in the Problems View and select "Show Details..."`</p>
  </blockquote>
  
  <p>It gives the error in the first line. </p>
  
  <p>How to get rid of it...
  I am frustrated. </p>
  
  <p>I tried to install "/npm run build" but not successful. </p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8" ?&gt;
  &lt;taglib xmlns="http://java.sun.com/xml/ns/j2ee"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-jsptaglibrary_2_0.xsd"
      version="2.0"&gt;
  </code></pre>