Microsoft.StreamProcessing causes exception on program loading

I have a somewhat complex trading application that handles lots of Event messages. It is a Windows MEF application that loads assemblies automatically at runtime.

I decided to try Microsoft.StreamProcessing to convert events to IStreamable. I moved in slow steps. First, I just added the assembly through nuget to my project. Then added

using Microsoft.StreamProcessing;

to the code, but did not declare any types. Runs fine.

Next, I added a single line to the code:

IStreamable<Empty, IQuote> markeDatatStream;

That's all I did. I am not using it in any way, just added that one line. This time, while the program is loading, I get the following exception. When I look inside the recommended LoaderExceptions field, I get:

{"Could not load file or assembly 'System.Runtime.Loader, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.":"System.Runtime.Loader, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"}

If I remove the single line from the code

IStreamable<Empty, IQuote> markeDatatStream;

It works fine.

The full exception:

System.Reflection.ReflectionTypeLoadException
  HResult=0x80131602
  Message=Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.
  Source=mscorlib
  StackTrace:
   at System.Reflection.RuntimeModule.GetTypes(RuntimeModule module)
   at System.Reflection.Assembly.GetTypes()
   at System.ComponentModel.Composition.Hosting.AssemblyCatalog.get_InnerCatalog()
   at System.ComponentModel.Composition.Hosting.AssemblyCatalog.GetExports(ImportDefinition definition)
   at System.Linq.Enumerable.<SelectManyIterator>d__17`2.MoveNext()
   at System.ComponentModel.Composition.Hosting.CatalogExportProvider.InternalGetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition)
   at System.ComponentModel.Composition.Hosting.ExportProvider.TryGetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition, IEnumerable`1& exports)
   at System.ComponentModel.Composition.Hosting.ExportProvider.TryGetExports(ImportDefinition definition, AtomicComposition atomicComposition, IEnumerable`1& exports)
   at System.ComponentModel.Composition.Hosting.CatalogExportProvider.GetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition)
   at System.ComponentModel.Composition.Hosting.ExportProvider.TryGetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition, IEnumerable`1& exports)
   at System.ComponentModel.Composition.Hosting.ExportProvider.GetExports(ImportDefinition definition, AtomicComposition atomicComposition)
   at System.ComponentModel.Composition.Hosting.AggregateExportProvider.GetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition)
   at System.ComponentModel.Composition.Hosting.ExportProvider.TryGetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition, IEnumerable`1& exports)
   at System.ComponentModel.Composition.Hosting.CompositionContainer.GetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition)
   at System.ComponentModel.Composition.Hosting.ExportProvider.TryGetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition, IEnumerable`1& exports)
   at System.ComponentModel.Composition.Hosting.ExportProvider.GetExports(ImportDefinition definition, AtomicComposition atomicComposition)
   at System.ComponentModel.Composition.Hosting.ImportEngine.TryGetExports(ExportProvider provider, ComposablePart part, ImportDefinition definition, AtomicComposition atomicComposition)
   at System.ComponentModel.Composition.Hosting.ImportEngine.TrySatisfyImportSubset(PartManager partManager, IEnumerable`1 imports, AtomicComposition atomicComposition)
   at System.ComponentModel.Composition.Hosting.ImportEngine.TrySatisfyImportsStateMachine(PartManager partManager, ComposablePart part)
   at System.ComponentModel.Composition.Hosting.ImportEngine.TrySatisfyImports(PartManager partManager, ComposablePart part, Boolean shouldTrackImports)
   at System.ComponentModel.Composition.Hosting.ImportEngine.SatisfyImports(ComposablePart part)
   at System.ComponentModel.Composition.Hosting.CompositionServices.TryInvoke(Action action)
   at System.ComponentModel.Composition.Hosting.ComposablePartExportProvider.Compose(CompositionBatch batch)
   at Trader.MainForm.InitializeTradingEngine() in C:\Users\idf\Projects\Trader-Orig-Working\Trader\Trader\MainForm.cs:line 200
   at Trader.MainForm..ctor(String logFilePath) in C:\Users\idf\Projects\Trader-Orig-Working\Trader\Trader\MainForm.cs:line 113
   at Trader.Program.Main() in C:\Users\idf\Projects\Trader-Orig-Working\Trader\Trader\Program.cs:line 231

The problem here is probably strong naming.

In summary:

If you include library A, which is strong named, and uses library B with assembly-version 1.0.0.0 and you are using Library B, but with assembly-version 1.1.0.0, then you will get loads errors - with the confusing error "The system cannot find the file specified"

You need then a binding:

<dependentAssembly>
  <assemblyIdentity name="B"     publicKeyToken="32ab4ba45e0a69a1"     culture="en-us" />
  <bindingRedirect oldVersion="1.0.0.0" newVersion="1.1.0.0" />
</dependentAssembly>

So someone builds to System.Runtime.Loader, Version=4.0.0.0, in your application, but you're probably (maybe via another library) providing another version of System.Runtime.Loader.

another option is add the System.Runtime.Loader versions to the GAC