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JasperException: Module 'null' not found.

Mike Himstead
Ranch Hand

Joined: Apr 12, 2006
Posts: 178

I'm working through J. Goodwill's "Mastering Jakarta Struts" but fail to get the first little Struts example up and running, mostly because the Strtus version in the book isn't up to date anymore. I tried to deal with it as far as I can.

First my code:




The error message from Tomcat's log:

I use Eclipse 3.2.1 and Tomcat 5.0.28 with Struts 1.3.5. I put all jars from Strut's lib directory into Project/WEB-INF/lib folder and added them to the project's build path. struts-html.tld is located in Project/WEB-INF/tld.

Any ideas what could cause this? I read several answers that mention a missing library, but all Strut libs are in place.
Merrill Higginson
Ranch Hand

Joined: Feb 15, 2005
Posts: 4864
Change the following line in your web.xml file from:


In the future, it's much easier if you simply import the struts-blank.war file as a new project into Eclipse. Then all of these setup details are taken care of.

Consultant, Sima Solutions
Mike Himstead
Ranch Hand

Joined: Apr 12, 2006
Posts: 178
Duh! I was staring at the code for ~ 2 hours before I posted. A good example that it's sometimes best to take a break. Thank you.
subject: JasperException: Module 'null' not found.