title: Eclipse "cannot find the tag library descriptor" for custom tags (not JSTL!)
body: <p>I have a Java EE project which build fine with Ant, deploys perfectly to JBoss, and runs without any trouble. This project includes a few <strong>custom</strong> tag libraries (which is not <a href="https://stackoverflow.com/tags/jstl/info">JSTL</a>!), which are also working without any difficulties.</p>
  
  <p>The problem is with the Eclipse IDE (Ganymede): in every single JSP file which uses our custom tags, the JSP parser flags the taglib include line with with this error:</p>
  
  <p><code>Cannot find the tag library descriptor for (example).tld</code></p>
  
  <p>This also causes every use of the tab library to be flagged as an error, and since the IDE doesn't have their definition, it can't check tag parameters, etc.</p>
  
  <p>Our perfectly-working JSP files are a sea of red errors, and my eyes are beginning to burn.</p>
  
  <p>How can I simply tell Eclipse, "The tag library descriptor you are looking for is "src/web/WEB-INF/(example)-taglib/(example).tld"?</p>
  
  <p>I've already asked this question on the Eclipse support forums, with no helpful results.</p>