WCF and Custom Role Provider Problem

Hello everyone,
I am trying toImplement some security into my WCF classes but Iam having some problems with using a custom role provider. I seem to be implementing it correctly vs. everything I have read on how to implement it but I keep getting an error. If someone could please point me in the right direction it would be great. Below is theerror, my web.config, and myWCF method. I know the role provider is working because I have the role access on the page that is calling the service, and the page loads fine.

Error:Request for principal permission failed.

<system.serviceModel>

<bindings>

<wsHttpBinding>

<bindingname="WSHttpBinding_ICalculator"closeTimeout="00:01:00"

openTimeout="00:01:00"receiveTimeout="00:10:00"sendTimeout="00:01:00"

bypassProxyOnLocal="false"transactionFlow="false"hostNameComparisonMode="StrongWildcard"

maxBufferPoolSize="524288"maxReceivedMessageSize="65536"

messageEncoding="Text"textEncoding="utf-8"useDefaultWebProxy="true"

allowCookies="true"> 

<readerQuotasmaxDepth="32"maxStringContentLength="8192"maxArrayLength="16384"

maxBytesPerRead="4096"maxNameTableCharCount="16384"/>

<reliableSessionordered="true"inactivityTimeout="00:10:00"

enabled="false"/>

</binding>

</wsHttpBinding>

</bindings>

<behaviors>

<serviceBehaviors>

<behaviorname="serviceBehavior"> 

<serviceAuthorizationprincipalPermissionMode="UseAspNetRoles"roleProviderName="CustomRoleProvider"> 

</serviceAuthorization>

<serviceCredentials>

<userNameAuthenticationuserNamePasswordValidationMode="MembershipProvider"membershipProviderName="CustomMembership"/>

</serviceCredentials>

</behavior>

</serviceBehaviors>

</behaviors>

<client>

<endpointaddress="http://localhost:8000/ServiceModelSamples/Service/CalculatorService"

binding="wsHttpBinding"bindingConfiguration="WSHttpBinding_ICalculator"

contract="ICalculator"name="WSHttpBinding_ICalculator"behaviorConfiguration="serviceBehavior"> 

</endpoint>

</client>

</system.serviceModel>

<system.web>

<roleManagerenabled="true"defaultProvider="CustomRoleProvider"> 

<providers>

<clear/>

<addname="CustomRoleProvider"type="WCFSecurityTest.CustomRoleProvider,WCFSecurityTest"/> 

</providers>

</roleManager>

<membershipdefaultProvider="CustomMembership">

<providers>

<clear/>

<addname="CustomMembership"type="WCFSecurityTest.CustomMembership,WCFSecurityTest"/> 

</providers>

</membership>

[PrincipalPermission(SecurityAction.Demand,Role="Admin")] 

publicdoubleAdd(doublen1,doublen2) 

{ 

//PrincipalPermissionp=new

//PrincipalPermission(null,"Admin"); 

//p.Demand(); 

doubleresult=n1+n2; 

Console.WriteLine("ReceivedAdd({0},{1})",n1,n2); 

//Codeaddedtowriteoutputtotheconsolewindow. 

Console.WriteLine("Return:{0}",result); 

returnresult; 

}

Thank you.

WCF and Custom Role Provider Problem

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