1: public class Foo : MarshalByRefObject

   2: {

   3:     [Dependency]

   4:     public IBar Bar { get; set; }

   5: }

   6: public interface IBar{}

   7: public class Bar : IBar

   8: {}

   1: static void Main(string[] args)

   2: {

   3:     var foo = PolicyInjection.Create<Foo>();

   4: }

   1: Microsoft.Practices.Unity.ResolutionFailedException was unhandled

   2:   Message=Resolution of the dependency failed, type = "Bug4Piab.Foo", name = "(none)".

   3: Exception occurred while: while resolving.

   4: Exception is: InvalidOperationException - The current type, Bug4Piab.IBar, is an interface and cannot be constructed. Are you missing a type mapping?

   5: -----------------------------------------------

   6: At the time of the exception, the container was:

   7:  

   8:   Resolving Bug4Piab.Foo,(none)

   9:   Resolving value for property Foo.Bar

  10:     Resolving Bug4Piab.IBar,(none)

  11:  

  12:   Source=Microsoft.Practices.EnterpriseLibrary.Common

  13:   TypeRequested=Foo

  14:   StackTrace:

  15:        at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.Unity.TransientPolicyBuildUpExtension.DoBuildUp(Type t, Object existing, String name, InjectionMember[] injectionMembers) in e:\Builds\EntLib\Latest\Source\Blocks\Common\Src\Configuration\Unity\TransientPolicyBuildUpExtension.cs:line 68

  16:        at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.Unity.TransientPolicyBuildUpExtension.BuildUp(Type t, Object existing, String name, InjectionMember[] injectionMembers) in e:\Builds\EntLib\Latest\Source\Blocks\Common\Src\Configuration\Unity\TransientPolicyBuildUpExtension.cs:line 47

  17:        at Microsoft.Practices.EnterpriseLibrary.PolicyInjection.PolicyInjector.Wrap(Type typeToReturn, Object instance) in e:\Builds\EntLib\Latest\Source\Blocks\PolicyInjection\Src\PolicyInjection\PolicyInjector.cs:line 137

  18:        at Microsoft.Practices.EnterpriseLibrary.PolicyInjection.PolicyInjector.Create(Type typeToCreate, Type typeToReturn, Object[] args) in e:\Builds\EntLib\Latest\Source\Blocks\PolicyInjection\Src\PolicyInjection\PolicyInjector.cs:line 196

  19:        at Microsoft.Practices.EnterpriseLibrary.PolicyInjection.PolicyInjector.Create(Type typeToCreate, Object[] args) in e:\Builds\EntLib\Latest\Source\Blocks\PolicyInjection\Src\PolicyInjection\PolicyInjector.cs:line 180

  20:        at Microsoft.Practices.EnterpriseLibrary.PolicyInjection.PolicyInjector.Create[TObject](Object[] args) in e:\Builds\EntLib\Latest\Source\Blocks\PolicyInjection\Src\PolicyInjection\PolicyInjector.cs:line 154

  21:        at Microsoft.Practices.EnterpriseLibrary.PolicyInjection.PolicyInjection.Create[TObject](Object[] args) in e:\Builds\EntLib\Latest\Source\Blocks\PolicyInjection\Src\PolicyInjection\PolicyInjection.cs:line 37

  22:        at Bug4Piab.Program.Main(String[] args)

  23:        at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)

  24:        at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)

  25:        at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()

  26:        at System.Threading.ThreadHelper.ThreadStart_Context(Object state)

  27:        at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)

  28:        at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

  29:        at System.Threading.ThreadHelper.ThreadStart()

  30:   InnerException: System.InvalidOperationException

  31:        Message=The current type, Bug4Piab.IBar, is an interface and cannot be constructed. Are you missing a type mapping?

  32:        Source=Microsoft.Practices.Unity

  33:        StackTrace:

  34:             at Microsoft.Practices.ObjectBuilder2.DynamicMethodConstructorStrategy.ThrowForAttemptingToConstructInterface(IBuilderContext context) in e:\Builds\Unity\UnityTemp\Compile\Unity\Unity\Src\ObjectBuilder\Strategies\BuildPlan\DynamicMethod\Creation\DynamicMethodConstructorStrategy.cs:line 209

  35:             at BuildUp_Bug4Piab.IBar(IBuilderContext )

  36:             at Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlan.BuildUp(IBuilderContext context) in e:\Builds\Unity\UnityTemp\Compile\Unity\Unity\Src\ObjectBuilder\Strategies\BuildPlan\DynamicMethod\DynamicMethodBuildPlan.cs:line 37

  37:             at Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext context) in e:\Builds\Unity\UnityTemp\Compile\Unity\Unity\Src\ObjectBuilder\Strategies\BuildPlan\BuildPlanStrategy.cs:line 43

  38:             at Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) in e:\Builds\Unity\UnityTemp\Compile\Unity\Unity\Src\ObjectBuilder\Strategies\StrategyChain.cs:line 110

  39:             at Microsoft.Practices.ObjectBuilder2.BuilderContext.NewBuildUp(NamedTypeBuildKey newBuildKey) in e:\Builds\Unity\UnityTemp\Compile\Unity\Unity\Src\ObjectBuilder\BuilderContext.cs:line 220

  40:             at Microsoft.Practices.Unity.ObjectBuilder.NamedTypeDependencyResolverPolicy.Resolve(IBuilderContext context) in e:\Builds\Unity\UnityTemp\Compile\Unity\Unity\Src\ObjectBuilderCustomization\NamedTypeDependencyResolverPolicy.cs:line 51

  41:             at BuildUp_Bug4Piab.Foo(IBuilderContext )

  42:             at Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlan.BuildUp(IBuilderContext context) in e:\Builds\Unity\UnityTemp\Compile\Unity\Unity\Src\ObjectBuilder\Strategies\BuildPlan\DynamicMethod\DynamicMethodBuildPlan.cs:line 37

  43:             at Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext context) in e:\Builds\Unity\UnityTemp\Compile\Unity\Unity\Src\ObjectBuilder\Strategies\BuildPlan\BuildPlanStrategy.cs:line 43

  44:             at Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) in e:\Builds\Unity\UnityTemp\Compile\Unity\Unity\Src\ObjectBuilder\Strategies\StrategyChain.cs:line 110

  45:             at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.Unity.TransientPolicyBuildUpExtension.DoBuildUp(Type t, Object existing, String name, InjectionMember[] injectionMembers) in e:\Builds\EntLib\Latest\Source\Blocks\Common\Src\Configuration\Unity\TransientPolicyBuildUpExtension.cs:line 64

  46:        InnerException: 

   1: static void Main(string[] args)

   2: {

   3:     var contianer = new UnityContainer();

   4:     contianer.RegisterType<IBar, Bar>();

   5:     var foo = contianer.Resolve<Foo>();

   6:     var proxy = PolicyInjection.Wrap<Foo>(foo);

   7: }

   1: class Program

   2: {

   3:     static void Main(string[] args)

   4:     {

   5:         var contianer = new UnityContainer();

   6:         contianer.RegisterType<IBar, Bar>();

   7:         contianer.RegisterType<IFoo, Foo>();

   8:         var foo = contianer.Resolve<IFoo>();

   9:         var proxy = PolicyInjection.Wrap<IFoo>(foo);

  10:     }

  11: }

  12: public interface IFoo { }

  13: public class Foo : IFoo

  14: {

  15:     [Dependency]

  16:     public IBar Bar { get; set; }

  17: }

  18: public interface IBar{}

  19: public class Bar : IBar

  20: {}