System.ServiceModel.Activation.HttpModule

.NET 安装的顺序应该是先装 IIS，再装 VS.NET，如果次序反了，或者 IIS重装了，就需要使用aspnet_regiis.exe -i 来重新安装 IIS Mapping（主要用于aspx, asmx等文件的 Extention 的匹配）。在 C:\WINDOWS\Microsoft.NET\Framework\v1.0.3705 目录下，运行下面的命令：aspnet_regiis.exe -i。


报错：不能加载 System.ServiceModel.Activation.HttpModule
Could not load type ‘System.ServiceModel.Activation.HttpModule’ from assembly ‘System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089′. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.TypeLoadException: Could not load type ‘System.ServiceModel.Activation.HttpModule’ from assembly ‘System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089′.Could not load type ‘System.ServiceModel.Activation.HttpModule’ from assembly ‘System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089′. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more inform ation about the eraaaaaror and where it originated in the code. Exception Details: System.TypeLoadException: Could not load type ‘System.ServiceModel.Activation.HttpModule’ from assembly ‘System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089′.

解决方法：
使用命令： c:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe -iru