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[protege-discussion] installation problem, cannot load the list of ontologies, cannot login

Jennifer Vendetti vendetti at
Tue May 19 16:15:20 PDT 2009

Hello Michal,

Michal Trna wrote:
> I have installed Webprotege according to instructions [1] on Ubuntu 
> machine in these two configurations:
> Tomcat 5.5, Protege 3.4 release, WebProtege 0.5 alpha, build 102.
> Tomcat 6, Protege 3.4 release, WebProtege 0.5 alpha, build 102.

We have not tested WebProtege with Tomcat 6.  Only with 5.5.

> To both of them it is possible to connect through Protege Client. Both 
> also fail when I try to connect via WebProtege. For both cases, 
> WebProtege screen shows all the control elements like the frames and 
> buttons, but the list of ontologies is empty and it is not possible to 
> log in.
> My log files look like:
> Tomcat 5.5, catalina.log:
> May 19, 2009 7:29:19 PM org.apache.commons.modeler.Registry 
> registerComponent
> SEVERE: Error registering 
> Catalina:type=Valve,name=StandardContextValve,path=/webprotege,host=localhost 
> Cannot instantiate ModelMBean of 
> class org.apache.commons.modeler.BaseModelMBean
>    at 
> org.apache.commons.modeler.ManagedBean.createMBean(
>    at 
> org.apache.commons.modeler.Registry.registerComponent(
> ...
> Caused by: access denied 
> ( 
> /var/lib/tomcat5.5/webapps/webprotege/WEB-INF/classes/ 
> read)

I notice in the exception above that you are getting an access denied error: 

Did you check that you have the proper access permissions for this file?


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