Can not find the tag library descriptor for http java sun com jsp jstl core

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I have included this at the very top of my JSP page:

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

I already placed the JSTL JAR file in the WEB-INF/lib directory. But still, the JSP can't resolve the taglib. I get the below error:

I am using Eclipse Juno and the project structure is shown below:
enter image description here

Feb 17 in Java by Rahul
• 8,980 points
22 views

1 answer to this question.

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If you have a jstl.jar file while JSTL 1.2 has clearly the version number included like so jstl-1.2.jar. The sole filename jstl.jar is typical for JSTL 1.0 and 1.1. This version requires a standard.jar along in /WEB-INF/lib which contains the necessary TLD files. However, in your particular case the standard.jar is clearly missing in /WEB-INF/lib and that's exactly the reason why the taglib URI couldn't be resolved. To solve this you must remove the wrong JAR file, download jstl-1.2.jar and drop it in its entirety in /WEB-INF/lib. That's all. You do not need to extract it nor to fiddle in the project's Build Path. Don't forget to remove that loose c.tld file too. It absolutely doesn't belong there. This is indeed instructed in some poor tutorials or answers elsewhere in the Internet. This is a myth caused by a major misunderstanding and misconfiguration. There is never a need to have a loose JSTL TLD file in the classpath, also not in previous JSTL versions.

In case you're using Maven, use the below coordinate:
 

<dependency> 
      <groupId>javax.servlet</groupId> 
      <artifactId>jstl</artifactId> 
    <version>1.2</version> 
</dependency>

You should also make sure that your web.xml is declared conform to at least Servlet 2.4 and thus not as Servlet 2.3 or older. Otherwise EL expressions inside JSTL tags would in turn fail to work. Pick the highest version matching your target container and make sure that you don't have a <!DOCTYPE> anywhere in your web.xml. Here's a Servlet 3.0 (Tomcat 7) compatible example:
 

<?xml version="1.0" encoding="UTF-8"?> 
<web-app 
xmlns="http://java.sun.com/xml/ns/javaee"        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 
version="3.0"> 
              <!-- Config here. --> 
</web-app>
answered Feb 17 by Aditya
• 7,280 points

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