Unable to add Custom JSP 1.2 Tag Library to Project

Question

I am trying to upgrade to a newer version of JDeveloper (10.1.3.0.4) but am having a problem with projects that use custom JSP tag libraries.
After converting the project (.jpr) files to the new version, I double click and go to "JSP Tag Libraries." When I click on "Add" to add a new JSP Tag library, only JSP version 1.1 libraries are shown, I cannot choose any JSP 1.2 tag libraries.
my TLD files are all JSP 1.2, so I am not quite sure why this isn't working in a newer JDeveloper after it has worked fine in the past. If I examine any JSP page that uses my taglibs, I see the following 2 kinds of error:
the line:
<%@ taglib uri="taglib.uri" prefix="mytag" %>
is underlined in red and says "the tag library taglib.uri is referenced, but not installed"
And for any lines that try to use the custom tag:
<mytag:dosomething>
there is a yellow/orange underline that says "no grammar available for namespace taglib.uri, contents of element dosomething cannot be validated"
Note that I can add the taglib JAR file under Tools > Manage Libraries, but I cannot add the JSP tag library to my project. Is there some sort of compatibility issue when transferring project files from an old version of JDeveloper?
Any help would be appreciated

Answer 1

Yes any new project I create I can specify JSP 1.2 or 2.0 with the wizard and it works fine.
But I don't want to re-create my entire project file again just to register my taglibs.
Here's the JSP related section in web.xml:
<!-- TagLibraries -->
<taglib>
<taglib-uri>taglib.uri</taglib-uri>
<taglib-location>/WEB-INF/tlds/mytag.tld</taglib-location>
</taglib>
It's definately something in the project itself... but I am lost as to what it is.
Edit: nvm I fixed it. It was the web.xml. I had to change the line:
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
into
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
and it worked. Thanks.
Message was edited by:
user523020