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POSilverlight RIA Services Complex Type Error On Server
 

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    <p>We are trying to run a Silverlight 4.0 with RIA Services SP1 on an older server without SP1. We copied all of the DLL to a local BIN folder, Copy Local is set to True AND Specific Version is set to True yet we are still getting a "complex type" error below.</p> <pre><code>WebHost failed to process a request. Sender Information: System.ServiceModel.ServiceHostingEnvironment+HostingManager/7339810 Exception: System.ServiceModel.ServiceActivationException: The service '/Linebacker/Services/FCSAmerica-Linebacker-Web-DomainServices-LinebackerDomainService.svc' cannot be activated due to an exception during compilation. The exception message is: Operation named 'SearchCustomers' does not conform to the required signature. Return types must be an entity, collection of entities, or one of the predefined serializable types.. ---&gt; System.InvalidOperationException: Operation named 'SearchCustomers' does not conform to the required signature. Return types must be an entity, collection of entities, or one of the predefined serializable types. at System.ServiceModel.DomainServices.Server.DomainServiceDescription.ValidateMethodSignature(DomainOperationEntry method) at System.ServiceModel.DomainServices.Server.DomainServiceDescription.AddInvokeOperation(DomainOperationEntry method) at System.ServiceModel.DomainServices.Server.DomainServiceDescription.Initialize() at System.ServiceModel.DomainServices.Server.DomainServiceDescription.CreateDescription(Type domainServiceType) at System.ServiceModel.DomainServices.Server.DomainServiceDescription.&lt;&gt;c__DisplayClass8.&lt;GetDescription&gt;b__7(Type type) at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory) at System.ServiceModel.DomainServices.Server.DomainServiceDescription.GetDescription(Type domainServiceType) at System.ServiceModel.DomainServices.Hosting.DomainServiceHost..ctor(Type domainServiceType, Uri[] baseAddresses) at System.ServiceModel.DomainServices.Hosting.DomainServiceHostFactory.CreateServiceHost(Type serviceType, Uri[] baseAddresses) at System.ServiceModel.Activation.ServiceHostFactory.CreateServiceHost(String constructorString, Uri[] baseAddresses) at System.ServiceModel.ServiceHostingEnvironment.HostingManager.CreateService(String normalizedVirtualPath) at System.ServiceModel.ServiceHostingEnvironment.HostingManager.ActivateService(String normalizedVirtualPath) at System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath) --- End of inner exception stack trace --- at System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath) at System.ServiceModel.ServiceHostingEnvironment.EnsureServiceAvailableFast(String relativeVirtualPath) </code></pre> <p>This is what our code looks like in the domain service...its a wrapper around a WCF call not an Entity object.</p> <pre><code> [Invoke] public IEnumerable&lt;Customer&gt; SearchCustomers(string searchValue) { return new List&lt;Customer&gt;(); } </code></pre> <p>Do we need to install SP1 on the Host Server? Will this impact older versions of Silverlight that are running there? Are we missing an attribute or something?</p> <p>We have basically copied every dll local to the hosts bin folder and referenced the same in a library folder on our development machines. </p> <p>Things run fine on our developer machines but not on the Server.</p> <p>Thanks Qui_Jon</p>
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