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Erro ao instanciar obj

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Boa tarde, pessoal.

Ao instanciar um obj, obtenho a seguinte mensagem de erro:

invalid ServicedComponent-derived classes where found in the assembly.
(Classes must be public, concrete, have a public default constructor, and meet all ohter ComVisibility
requirements)

Segue a classe:
    [Transaction(TransactionOption.Required)]
    [JustInTimeActivation(true)]
    [ClassInterface(ClassInterfaceType.AutoDual)]
    public class ClientFacade : ServicedComponent
    {
        public ClientFacade() { }

        public void SaveClient(Params)
        {
              (...)
        }
    }

Procurando na net, vi que talvez setando o atribuito ComVisible para true - [assembly: ComVisible(true)]  -  no assemblyinfo do projeto resolveria o programa. Mas ao compilar ele reclamou de nao ter um strong name. Gerei entao o strong name, mas agora ele reclama que os assemblies aos quais eu faço referencia (assemblies de terceiros) nao possuem strong names...

Alguem sabe o que devo fazer? Estou no caminho certo ou há algum erro na classe?

Valeu!


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