Microsoft.StreamProcessing 导致程序加载异常

Question

我有一个有点复杂的交易应用程序，可以处理大量事件消息。这是一个 Windows MEF 应用程序，在 runtime.

自动加载 assemblies

我决定尝试 Microsoft.StreamProcessing 将事件转换为 IStreamable。我迈着缓慢的步伐。首先，我刚刚通过 nuget 将程序集添加到我的 project。然后添加

using Microsoft.StreamProcessing;

代码，但没有声明任何类型。运行良好。

接下来，我在代码中添加了单行：

IStreamable<Empty, IQuote> markeDatatStream;

我就是这么做的。我没有以任何方式使用它，只是添加了一行。这一次，在加载程序时，出现以下异常。当我查看推荐的 LoaderExceptions 字段时，我得到：

{"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"}

如果我删除代码中的单行

IStreamable<Empty, IQuote> markeDatatStream;

它工作正常。

完整异常：

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

Answer 1

这里的问题大概是strong naming.

总结：

如果您包含强命名的库 A，并使用带 assembly-version 1.0.0.0 的库 B 并且您正在使用库 B，但是使用 assembly-version 1.1.0.0，那么您将遇到加载错误 - 令人困惑的错误 "The system cannot find the file specified"

然后你需要一个绑定：

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

所以有人在您的应用程序中构建 System.Runtime.Loader，版本 = 4.0.0.0，但您可能（可能通过另一个库）提供另一个版本的 System.Runtime.Loader。

另一个选项是将 System.Runtime.Loader 版本添加到 GAC

Microsoft.StreamProcessing 导致程序加载异常

Microsoft.StreamProcessing causes exception on program loading

.net

c#

mef

winforms