java.lang.NoClassDefFoundError: org/dom4j/Attribute

lesha · **Posted:** Thu Jul 15, 2004 3:36 am

Help!
I'm using Tomcat and try to use Hibernate.
I've got this error:

java.lang.NoClassDefFoundError: org/dom4j/Attribute

For the first I copied my JDBS-Driver to TOMCAT/common/lib, then
I copied dom4J.jar and hibernate-2.1.jar (and some other jars listed in Hibernate Doc ) to WEB-INF/lib Directory of my Eclipse-Project. So both global and context Classpaths schould be set... But something is wrong, and Ican't find it.

Please help!!!!
Lena

shl · **Posted:** Thu Jul 15, 2004 3:48 am

Hi, lesha!

Read this chapter 1. Quickstart with Tomcat
http://www.hibernate.org/hib_docs/reference/en/html/quickstart.html

--
Leonid

lesha · **Posted:** Thu Jul 15, 2004 4:33 am

I've read it five times. My Server.xml-File contains the Project-Context and JDBC-Ressources definition. Hibernate properties-File has MySQL Lines uncommented and hibernate.cfg.xml is modified too. Web.xml contains servlet Information and its ressorce Information. What did I do wrong?!?
Lena

anthony · **Posted:** Thu Jul 15, 2004 4:35 am

you have manually added the jars into directory (web-inf/lib) but did you declare these jar in the eclipse tomcat project?

lesha · **Posted:** Thu Jul 15, 2004 4:41 am

Do you mean to import required jars as External jars via Project properties?
Lena

anthony · **Posted:** Thu Jul 15, 2004 4:45 am

1- remove hibernate & dependant jars from TOMCAT/common/lib
2- check that all needed jars are into webapp/yourApp/WEB-INF/lib
3- right click on project root + properties + java build path + add jars (not external jars) and add all you can

restart tomcat

lesha · **Posted:** Thu Jul 15, 2004 5:58 am

It didn't help...
I think, I re-install hibernate and make a new Test-Project.

Thenk you very much!
Lena

lesha · **Posted:** Fri Jul 16, 2004 7:26 am

Hier I am again... My new Test-Project was OK. I inserted to Cats in my DB Table(Hibernate example)!!!
Then I've decided to make a new Project. And then I've got

java.lang.NoClassDefFoundError: org/dom4j/Attribute
again.
After deleting the second Project, I found out that my Cat-Servlet (first Project) doesen't work any more, though I didn'change anything since then. Root Cause:
java.lang.NoClassDefFoundError: org/dom4j/Attribute !!!
and hibernate.cfg.xml - File is missing.
HEEEELP! I don't know what should I do...