I cant run tomcat through apache for web hosting

Operating system : ubuntu 8.10 server
Web server :Apache 2.2
Application server : tomcat 6.0.18
Connector : mod_jk 1.2.26

When I configure apache and libapache mod_jk I get the error syntax error Workers.properties is already loaded. And also I get the error in the webpage as contact your server administrator at webmaster@localhost