problem with usebin

[jayram]

hello!!!
i am trying to call a bean from my jsp
the bean class is in $tomcat_home\webapps\examples\WEB-INF\classes\projsp
and the JSP is located at
$tomcat_home\webapps\examples\jsp\projsp
The usebin tag is as follows:
<jsp:usebean id="tryBean" class="projsp.SpellCheck" scope="session" />
And the error message is as follows
Undefined variable or class name: tryBean

I am not sure why the jsp can not find the bean
Thanks in advance
Cheers
Jayram