Unknown tag (c:foreach). in eclipse

Question

I have jstl code and it builds by maven well... But Eclipse had compilation error \"Unknown tag (c:foreach).\"

code are here:

<%@ page language=\         


        

Answer 1

I was also getting this warning in eclipse. I was also getting other warnings such as:

Unknown tag (c:if) or Unknown tag (c:set) etc.

To fix these warning in eclipse, all i did was to include the following dependency in my pom file. Please note that I am using the servlet 2.5 api.

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

You seem to be using <provided> for this dependency in your pom file. Maybe that's causing your problem ?

Answer 2

Same thing was happening to me in Eclipse. It dissapeared after I deleted the white space between <%@ and taglib that appears in your code.

So now it appears like this and the warning is gone:

Answer 3

the correct tag is case sensitive. (c:forEach)

Answer 4

What you actually need is to add the following line on top of your JSP files:

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

Also, you need to download the JSTL jar files from here and add them to WEB_INF/lib folder.

Found my answer here: https://stackoverflow.com/a/8400733/3758439