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Problem with Configuration of Message Inspector

Posted By:      Posted Date: September 27, 2010    Points: 0   Category :WCF
I'm hoping someone might know what I am doing wrong. I'm trying to setup message interceptors and am trying to apply them to all of my services via the web.config. I've been working on it for hours but keep getting the following error:

Parser Error Message: The type 'AdventureWorksService.
Interceptor.ListenerServiceBehavior, AdventureWorksService.Interceptor, Version=,
        Culture=neutral, PublicKeyToken=null' registered for extension 'TestInterceptor' could not be loaded.

I have the classes under a the 'AdventureWorksService.Interceptor namespace in my web project.

Here my web config:

<?xml version="1.0"?>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" aspNetCompatibilityEnabled="true">
        <add relativeAddress="~/DataService.svc" service="AdventureWorksDataService"/>
    <!--For REST-->

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