Problem implementing a Custom Role Provider.

Hello Everyone,

      Im having some trouble trying to implement a custom role provider into my asp.net web application.  I have compiled the library file with the source code provided from the msdn article.. I placed the library file into the bin folder as directed but im getting an error inside the web configuration file..

<roleManager defaultProvider="CustomRoleProvider"
         enabled="true">
       <providers>
         <clear />
         <add
         & ...