.net – 无法加载Exchange powershell管理单元：“Microsoft.Exchange.Data.Directory.Globals”的类型初始化程序抛出异常

Dim runspaceConfig = RunspaceConfiguration.Create()

Dim snapInException As PSSnapInException = Nothing
runspaceConfig.AddPSSnapIn("Microsoft.Exchange.Management.PowerSHell.E2010",snapInException)

Dim runspace = RunspaceFactory.CreateRunspace(runspaceConfig)
runspace.open()

自从安装Visual studio 2012以来,在执行将管理单元添加到runspace配置中的行时,我开始收到以下错误.

System.Management.Automation.Runspaces.PSSnapInException occurred
  HResult=-2146233087
  message=CAnnot load Windows PowerSHell snap-in Microsoft.Exchange.Management.PowerSHell.E2010 because of the following error: The type initializer for 'Microsoft.Exchange.Data.Directory.Globals' threw an exception.
  source=System.Management.Automation
  WasThrownFromThrowStatement=false
  StackTrace:
       at System.Management.Automation.Runspaces.RunspaceConfigForSingleSHell.LoadCustomPSSnapIn(PSSnapInInfo mshsnapinInfo)
       at System.Management.Automation.Runspaces.RunspaceConfigForSingleSHell.LoadPSSnapIn(PSSnapInInfo mshsnapinInfo)
       at System.Management.Automation.Runspaces.RunspaceConfigForSingleSHell.LoadPSSnapIn(PSSnapInInfo mshsnapinInfo,PSSnapInException& warning)
       at System.Management.Automation.Runspaces.RunspaceConfigForSingleSHell.DoAddPSSnapIn(String name,PSSnapInException& warning)
       at System.Management.Automation.Runspaces.RunspaceConfiguration.AddPSSnapIn(String name,PSSnapInException& warning)

我已经能够确认nlog是不知何故导致这个问题.在创建powersHell runspace之前创建一个nlog记录器的组合会导致错误.

如果我从我的应用程序配置中删除nlog配置部分,只需创建一个空的nlog记录器,那么加载中没有错误.另外,如果我在应用程序配置中留下了nlog配置,但是不创建一个nlog记录器,那么管理单元也被成功加载.

>我已经尝试在x64和x86中构建项目.
>我已经重新安装了交换管理工具.
>我已经尝试在交换环境中的另一台机器上进行测试.

如果有人可以提供任何可能帮助我解决这个问题的建议,我将会很有意思.

谢谢