Exception when using Ninject.Extensions.Factory with ILMerge

[Pete]

Hi Remo,

When I use the Factory extension, I get this exception when the assemblies are merged using ILMerge. It's easy to repro but I can send you a sln demonstrating the problem if you like.

Any help appreciated.

Cheers,

Pete.

  <Target Name="AfterBuild">

    <ItemGroup>

      <ForMerging Include="@(ReferenceCopyLocalPaths)" Condition="%(Extension) == '.dll' OR %(Extension) == '.exe'" />

    </ItemGroup>

    <Exec Command="&quot;$(MSBuildProjectPath)..\build\tools\ilmerge.exe&quot; /ndebug /targetplatform:&quot;v4,C:\Windows\Microsoft.NET\Framework\v4.0.30319&quot; /out:@(MainAssembly) &quot;@(IntermediateAssembly)&quot; @(ForMerging->'&quot;%(FullPath)&quot;', ' ')" />

    <Delete Files="@(ReferenceCopyLocalPaths->'$(OutDir)%(DestinationSubDirectory)%(Filename)%(Extension)')" />

  </Target>

</Project>

Unhandled Exception: System.Reflection.TargetInvocationException: Exception has

been thrown by the target of an invocation. ---> Ninject.ActivationException: Er

ror activating IInterceptor using conditional implicit self-binding of IIntercep

tor

Provider returned null.

Activation path:

  2) Injection of dependency IInterceptor into parameter  of constructor of type

 IFooFactoryProxy

  1) Request for IFooFactory

Suggestions:

  1) Ensure that the provider handles creation requests properly.

   at Ninject.Activation.Context.Resolve()

   at Ninject.KernelBase.<>c__DisplayClass10.<Resolve>b__c(IBinding binding)

   at System.Linq.Enumerable.WhereSelectListIterator`2.MoveNext()

   at System.Linq.Enumerable.<CastIterator>d__b1`1.MoveNext()

   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)

   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)

   --- End of inner exception stack trace ---

   at System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Ob

ject target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAt

tributes, RuntimeType typeOwner)

   at System.RuntimeMethodHandle.InvokeMethodFast(IRuntimeMethodInfo method, Obj

ect target, Object[] arguments, Signature sig, MethodAttributes methodAttributes

, RuntimeType typeOwner)

   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invoke

Attr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisib

ilityChecks)

   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invoke

Attr, Binder binder, Object[] parameters, CultureInfo culture)

   at Ninject.Infrastructure.Language.ExtensionsForIEnumerable.ToArraySlow(IEnum

erable series, Type elementType)

   at Ninject.Planning.Targets.Target`1.ResolveWithin(IContext parent)

   at Ninject.Activation.Providers.StandardProvider.GetValue(IContext context, I

Target target)

   at Ninject.Activation.Providers.StandardProvider.<>c__DisplayClass4.<Create>b

__2(ITarget target)

   at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()

   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)

   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)

   at Ninject.Activation.Providers.StandardProvider.Create(IContext context)

   at Ninject.Activation.Context.Resolve()

   at Ninject.KernelBase.<>c__DisplayClass10.<Resolve>b__c(IBinding binding)

   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()

   at System.Linq.Enumerable.<CastIterator>d__b1`1.MoveNext()

   at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source)

   at Ninject.ResolutionExtensions.Get[T](IResolutionRoot root, IParameter[] par

ameters)

   at NinjectIlmergeConflict.Program.Main(String[] args)

[Remo Gloor]

Hi Pete

 

It seems the StandardProvider is not able to create an instance of the FactoryInterceptor. What you can try is to use Reflection instead of dynamic method invocation by setting INinjectSetting.UseReflectionBasedInjection to true. Also be aware that the factory extension contains the FuncModule which is automatically loaded. Probably you have to load it manually after merging.

 

Regards Remo

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[Pete]

Remo,

Manually calling kernel.Load<FuncModule>() seems to fix the problem!

Many thanks again,

Pete.