Entity Framework does not work on published WCF service

Question

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I have an WCF service that is hosted on a web site, but i can get Entity Framework to work with it. Everything works fine locally but not on the server. I get the following exception:

Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.

Stack trace:

at System.Reflection.RuntimeModule.GetTypes(RuntimeModule module)  at System.Reflection.Assembly.GetTypes() at System.Data.Metadata.Edm.ObjectItemAttributeAssemblyLoader.LoadTypesFromAssembly()  at System.Data.Metadata.Edm.ObjectItemAssemblyLoader.Load()   at System.Data.Metadata.Edm.AssemblyCache.LoadAssembly(Assembly assembly, Boolean loadReferencedAssemblies, ObjectItemLoadingSessionData loadingData)  at System.Data.Metadata.Edm.AssemblyCache.LoadAssembly(Assembly assembly, Boolean loadReferencedAssemblies, KnownAssembliesSet knownAssemblies, EdmItemCollection edmItemCollection, Action`1 logLoadMessage, Object& loaderCookie, Dictionary`2& typesInLoading, List`1& errors)\r\n   at System.Data.Metadata.Edm.ObjectItemCollection.LoadAssemblyFromCache(ObjectItemCollection objectItemCollection, Assembly assembly, Boolean loadReferencedAssemblies, EdmItemCollection edmItemCollection, Action`1 logLoadMessage)\r\n   at System.Data.Metadata.Edm.ObjectItemCollection.ImplicitLoadAssemblyForType(Type type, EdmItemCollection edmItemCollection)\r\n   at System.Data.Metadata.Edm.MetadataWorkspace.ImplicitLoadAssemblyForType(Type type, Assembly callingAssembly)  at System.Data.Objects.ObjectContext.GetTypeUsage(Type entityCLRType)\r\n   at System.Data.Objects.ObjectContext.GetEntitySetFromContainer(EntityContainer container, Type entityCLRType, String exceptionParameterName) at System.Data.Objects.ObjectContext.GetEntitySetForType(Type entityCLRType, String exceptionParameterName)

I'm sorry that I'm not able to provide more details, but this is because i don't know what is going on. If there are any other details needed to solve this problem please let me know, i will post them. I have checked the following:

1. .Net version is the same on all projects.
2. Copy Local is set to "True" on all references.

Posted 10-Oct-12 0:20am

huotari

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Jim Jos 10-Oct-12 6:46am

This won't please publish the code which is not working

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huotari · Accepted Answer · 2012-10-10T02:22:00

Finally solved it. My library project referenced System.Web.Mvc so i had to copy the following dll's to the Bin-folder:

Microsoft.Web.Infrastructure.dll
System.Web.Mvc.dll
System.Web.Razor.dll
System.Web.WebPages.Deployment.dll
System.Web.WebPages.dll
System.Web.WebPages.Razor.dll

What i don't understand is, if i set the copy local to "true" on a reference inside a library project why isn't it included, when i publish the web site.