wcf issue

I have very simple wcf services with the following app.config built in vs 2008
View the attached error message.

When I built the .cs project, no error alerts. when I F5 /debug, I see the attached error message.

Need some experts to help me resolve this... Thanks

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <system.web>
    <compilation debug="true" />
    <customErrors mode="Off"></customErrors>

  </system.web>
  <!-- When deploying the service library project, the content of the config file must be added to the host's
  app.config file. System.Configuration does not support config files for libraries. -->
  <system.serviceModel>

    <bindings>
      <wsHttpBinding>
        <binding name="TheBindingConfig">
          <security mode="None">
            <message clientCredentialType="None"/>
          </security>
        </binding>
      </wsHttpBinding>
    </bindings>


    <serviceHostingEnvironment      >
      <baseAddressPrefixFilters>
        <add prefix="http://www.domain.com/HostedInsuranceServices/InsuranceServiceLibrary.Service.svc"/>
      </baseAddressPrefixFilters>

    </serviceHostingEnvironment>
    <services>
      <service
        name="InsuranceServiceLibrary.Service"
          >
        <endpoint address="http://www.domain.com/HostedInsuranceServices/InsuranceServiceLibrary.Service.svc" binding="wsHttpBinding" contract="InsuranceServiceLibrary.IService"
                  bindingConfiguration="TheBindingConfig"
                  >
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint   address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
        <host>
          <baseAddresses>
            <add baseAddress="http://www.domain.com/HostedInsuranceServices/InsuranceServiceLibrary/Service/" />
          </baseAddresses>
        </host>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <!-- To avoid disclosing metadata information,
          set the value below to false and remove the metadata endpoint above before deployment -->
          <serviceMetadata httpGetEnabled="True" />
          <!-- To receive exception details in faults for debugging purposes,
          set the value below to true.  Set to false before deployment
          to avoid disclosing exception information -->
          <serviceDebug includeExceptionDetailInFaults="False"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>


  </system.serviceModel>

</configuration>
wcfIssue.png