AppDomain.CurrentDomain.Evidence 抛出 SerializationException

在 VS 2013 中使用 ReSharper (8.2.2) 运行测试用例时，我遇到了一个奇怪的错误。

演示问题的简化测试用例仅包含两行代码：

CallContext.LogicalSetData("mydata", new ActivityStack());
var evidence = AppDomain.CurrentDomain.Evidence;

其中 ActivityStack 是可序列化的自定义类型。当测试用例通过 ReSharper 运行时，第二行会抛出异常：

System.Runtime.Serialization.SerializationException was unhandled by user code
  HResult=-2146233076
  Message=Type is not resolved for member 'CSG.Framework.Operations.ActivityStack,CSG.Framework, Version=15.2.0.0, Culture=neutral, PublicKeyToken=e7ab1d859f54b223'.
  Source=mscorlib
  StackTrace:
       at System.AppDomain.get_Evidence()
       at System.AppDomain.get_Evidence()
       at CSG.Framework.Utilities.AppDomainLauncher`1..ctor(String appDomainName) in d:\Work\Git\Framework\Src\Library\Framework\Utilities\AppDomainLauncher.cs:line 40
       at CSG.Framework.UnitTest.AppDomainLauncherTests.LaunchClassFromCallingAssembly() in d:\Work\Git\Framework\Src\Library\Framework.UnitTest\Utilities\AppDomainLauncherTests.cs:line 52
  InnerException: 

尽管当前 AppDomain 在 BaseDirectory 上似乎具有正确的路径，可以在其中找到包含该类型的程序集，但 CLR 似乎仍在使用 ReSharper bin 路径根据 Fusion 日志来探测程序集。如果我将程序集复制到 ReSharper bin 文件夹，问题就会消失，但我认为这不是正确的解决方案。我尝试订阅当前 AppDomain 上的 AssemblyResolve 事件，但未调用处理程序。

融合日志：

*** Assembly Binder Log Entry  (1/23/2015 @ 12:28:54 PM) ***

The operation failed.
Bind result: hr = 0x80070002. The system cannot find the file specified.

Assembly manager loaded from:     C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dll
Running under executable  C:\Program Files (x86)\JetBrains\ReSharper\v8.2.Qiwabic\Bin\JetBrains.ReSharper.TaskRunner.CLR45.x64.exe
--- A detailed error log follows. 

=== Pre-bind state information ===
LOG: DisplayName = CSG.Framework, Version=15.2.0.0, Culture=neutral, PublicKeyToken=e7ab1d859f54b223 (Fully-specified)
LOG: Appbase = file:///C:/Program Files (x86)/JetBrains/ReSharper/v8.2.Qiwabic/Bin/
LOG: Initial PrivatePath = NULL
LOG: Dynamic Base = NULL
LOG: Cache Base = NULL
LOG: AppName = JetBrains.ReSharper.TaskRunner.CLR45.x64.exe Calling assembly : (Unknown).
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\Program Files (x86)\JetBrains\ReSharper\v8.2.Qiwabic\Bin\JetBrains.ReSharper.TaskRunner.CLR45.x64.exe.Config
LOG: Using host configuration file: 
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework64\v4.0.30319\config\machine.config.
LOG: Post-policy reference: CSG.Framework, Version=15.2.0.0, Culture=neutral, PublicKeyToken=e7ab1d859f54b223
LOG: GAC Lookup was unsuccessful.
LOG: Attempting download of new URL file:///C:/Program Files (x86)/JetBrains/ReSharper/v8.2.Qiwabic/Bin/CSG.Framework.DLL.
LOG: Attempting download of new URL file:///C:/Program Files (x86)/JetBrains/ReSharper/v8.2.Qiwabic/Bin/CSG.Framework/CSG.Framework.DLL.
LOG: Attempting download of new URL file:///C:/Program Files (x86)/JetBrains/ReSharper/v8.2.Qiwabic/Bin/CSG.Framework.EXE.
LOG: Attempting download of new URL file:///C:/Program Files (x86)/JetBrains/ReSharper/v8.2.Qiwabic/Bin/CSG.Framework/CSG.Framework.EXE.
LOG: All probing URLs attempted and failed.

这个链接（https://msdn.microsoft.com/en-us/library/dn458353(v=vs.110).aspx https://msdn.microsoft.com/en-us/library/dn458353(v=vs.110).aspx）解释了根本原因。

涉及两个应用程序域：默认应用程序域（ReSharper 运行程序）和当前应用程序域（测试用例）。当AppDomain.Evidence在当前应用域中执行时：

• 它查找当前应用程序域的证据。
• 它尝试计算当前应用程序域的证据 基于当前域。
• 获取当前域证据的调用会触发 从当前应用程序域到默认应用程序域的跨应用程序域调用 应用程序域。
• 作为 .NET Framework 中跨应用程序域契约的一部分， 逻辑调用上下文的内容也必须被编组 应用程序域边界。

由于逻辑调用上下文中的类型 (ActivityStack) 无法在默认应用程序域中解析，因此会引发异常。