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Unity v3 - RegistrationByConvention - Could not load type exception

description

I am using Enterprise Library 6 and Unity v.3.5.0.0

The following error occurs:
Could not load type 'Microsoft.Practices.EnterpriseLibrary.Common.Configuration.Manageability.ConfigurationSectionManageabilityProviderAttribute' from assembly 'Microsoft.Practices.EnterpriseLibrary.Common, Version=6.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.
when using this code to register multiple types with the container automatically by using a set of rules and conventions (Registration by Convention)
container.RegisterTypes(
    AllClasses.FromLoadedAssemblies()
    .Where(x => (x.IsPublic == true) &&
    (x.GetInterfaces().Any() == true) &&
    (x.IsAbstract == false) &&
    (x.IsClass == true) &&
    x.Namespace == "Company.Project.Data.DA.NW" ),
    WithMappings.FromAllInterfaces, type => (container.Registrations.Select(x => x.RegisteredType)
    .Any(r => type.GetInterfaces().Contains(r) == true) == true) ? WithName.TypeName(type) : WithName.Default(type),
    WithLifetime.Transient);
Stacktrace:

[TypeLoadException: Could not load type 'Microsoft.Practices.EnterpriseLibrary.Common.Configuration.Manageability.ConfigurationSectionManageabilityProviderAttribute' from assembly 'Microsoft.Practices.EnterpriseLibrary.Common, Version=6.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.]
System.ModuleHandle.ResolveType(RuntimeModule module, Int32 typeToken, IntPtr* typeInstArgs, Int32 typeInstCount, IntPtr* methodInstArgs, Int32 methodInstCount, ObjectHandleOnStack type) +0
System.ModuleHandle.ResolveTypeHandleInternal(RuntimeModule module, Int32 typeToken, RuntimeTypeHandle[] typeInstantiationContext, RuntimeTypeHandle[] methodInstantiationContext) +145
System.Reflection.RuntimeModule.ResolveType(Int32 metadataToken, Type[] genericTypeArguments, Type[] genericMethodArguments) +162
System.Reflection.CustomAttribute.FilterCustomAttributeRecord(CustomAttributeRecord caRecord, MetadataImport scope, Assembly& lastAptcaOkAssembly, RuntimeModule decoratedModule, MetadataToken decoratedToken, RuntimeType attributeFilterType, Boolean mustBeInheritable, Object[] attributes, IList derivedAttributes, RuntimeType& attributeType, IRuntimeMethodInfo& ctor, Boolean& ctorHasParameters, Boolean& isVarArg) +87
System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeModule decoratedModule, Int32 decoratedMetadataToken, Int32 pcaCount, RuntimeType attributeFilterType, Boolean mustBeInheritable, IList derivedAttributes, Boolean isDecoratedTargetSecurityTransparent) +438 System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeAssembly assembly, RuntimeType caType) +103
System.Reflection.RuntimeAssembly.GetCustomAttributes(Type attributeType, Boolean inherit) +64
System.Attribute.GetCustomAttributes(Assembly element, Type attributeType, Boolean inherit) +87
System.Attribute.GetCustomAttribute(Assembly element, Type attributeType, Boolean inherit) +13
System.Reflection.CustomAttributeExtensions.GetCustomAttribute(Assembly element) +57
Microsoft.Practices.Unity.AllClasses.IsSystemAssembly(Assembly a) +78 Microsoft.Practices.Unity.<>c__DisplayClass10.b__f(Assembly a) +72 System.Linq.WhereArrayIterator1.MoveNext() +48

System.Linq.<SelectManyIterator>d__142.MoveNext() +168
System.Linq.WhereEnumerableIterator1.MoveNext() +152

Microsoft.Practices.Unity.UnityContainerRegistrationByConventionExtensions.RegisterTypes(IUnityContainer
container, IEnumerable1 types, Func2 getFromTypes, Func2 getName, Func2 getLifetimeManager, Func2 getInjectionMembers, Boolean overwriteExistingMappings) +1323

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