win8 Could not load type System.ServiceModel.Activation.HttpModule 错误解决方案

From：http://support.microsoft.com/kb/2015129

Symptoms

　　Consider the following scenario. You install the .NET Framework 4.0. Then, you install an earlier version of the .NET Framework, or you enable .NET 3.0 WCF HTTP Activation. In this scenario, you may receive the following error message when you when run applications that are hosted on Internet Information Services (IIS):

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'.

 

Cause

　　This issue occurs because the Applicationhost.config file for Windows Process Activation Service (WAS) has the following section defined, and this section is incompatible with the .NET Framework 4.0:

<add name="ServiceModel" type="System.ServiceModel.Activation.HttpModule, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" preCondition="managedHandler" />

　　This section should be defined as follows:

<add name="ServiceModel" type="System.ServiceModel.Activation.HttpModule, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" preCondition="managedHandler,runtimeVersionv2.0" />

　　Note You can find the Applicationhost.config file in the following location:

%windir%/system32/inetsrv/config

 

Resolution

　　To resolve this issue, run the following command line: 

aspnet_regiis.exe /iru

　　The Aspnet_regiis.exe file can be found in one of the following locations:

%windir%/Microsoft.NET/Framework/v4.0.30319

%windir%/Microsoft.NET/Framework64/v4.0.30319 (on a 64-bit computer)

 

注意

　　以上方案在win8系统中无效，因为在最后一步运行 aspnet_regiis.exe /iru 命令时会失败，所以解决方案是找到 Applicationhost.config 文件（目录在%windir%/system32/inetsrv/config），然后把文件中的：

<add name="ServiceModel" type="System.ServiceModel.Activation.HttpModule, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" preCondition="managedHandler" />

　　改为：

<add name="ServiceModel" type="System.ServiceModel.Activation.HttpModule, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" preCondition="managedHandler,runtimeVersionv2.0" />

　　我目前只找到这种方案，如果有更好方案欢迎指出。

作者：Artwl
出处：http://artwl.cnblogs.com

IT时代网(关注微信公众号ITtime2000，定时推送，互动有福利惊喜)所有原创文章版权所有，未经授权，转载必究。
创客100创投基金成立于2015年，直通硅谷，专注于TMT领域早期项目投资。LP均来自政府、互联网IT、传媒知名企业和个人。创客100创投基金对IT、通信、互联网、IP等有着自己独特眼光和丰富的资源。决策快、投资快是创客100基金最显著的特点。