我曾经从C:\Program Files\Microsoft SDKs\Windows\v7.1\Bin\sgen.exe运行sgen.exe，并针对.NET 4程序集，它构建得很好。将项目升级到.NET 4.5后，它失败并显示以下错误：
Microsoft (R) Xml Serialization support utility [Microsoft (R) .NET Framework, Version 2.0.50727.3038] Copyright (C) Microsoft Corporation. All rights reserved. sgen.exe : Error: Unable to generate a temporary class (result=1). error CS0012: The type 'System.Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. error CS0012: The type 'System.ComponentModel.INotifyPropertyChanged' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.ObjectModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
我想我需要为新框架更新sgen.exe，所以我尝试了C:\Program Files (x86)\Microsoft SDKs\Windows\v8.1A\bin\NETFX 4.5.1 Tools和C:\Program Files (x86)\Microsoft SDKs\Windows\v8.0A\bin\NETFX 4.0 Tools，但那些也失败了：
Microsoft (R) Xml Serialization support utility [Microsoft (R) .NET Framework, Version 4.0.30319.33440] Copyright (C) Microsoft Corporation. All rights reserved. Error: Unable to generate a temporary class (result=1). error CS0012: The type 'System.Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. error CS0012: The type 'System.ComponentModel.INotifyPropertyChanged' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.ObjectModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
是否可以在.net 4.5程序集上使用sgen.exe？
（编辑）使用命令行：
PS C:\Program Files (x86)\Microsoft SDKs\Windows\v8.1a\bin\NETFX 4.5.1 Tools\x64> . .\sgen /f /a:"D:\MyProject\bin\x64\Debug\MyProgram.exe"