Cannot read configuration file due to insufficient permissions

HTTP Error 500.19 - Internal Server Error

The requested page cannot be accessed because the related configuration data for the page is invalid.

Detailed Error Information

Module	IIS Web Core
Notification	Unknown
Handler	Not yet determined
Error Code	0x80070005
Config Error	Cannot read configuration file due to insufficient permissions
Config File	\?C:UsersEricSunDocumentsVisual Studio 2010WebSitesSSOAuthWebSite1web.config

Requested URL	http://10.2.5.153:10001/
Physical Path
Logon Method	Not yet determined
Logon User	Not yet determined

Config Source

 -1:     0:  

Links and More Information

This error occurs when there is a problem reading the configuration file for the Web server or Web application. In some cases, the event logs may contain more information about what caused this error.

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Cause：1) 没有向iis中注册.net framework（引起的原因之一：先安装了.net framework，后安装的iis）

　　　　2) 没有对IIS中所配置的site有足够的操作权限（Modify权限）

Solution：

　　　　1) 到C:WindowsMicrosoft.NETFramework64v2.0.50727下，

　　　　　 用命令向iis中重新注册一下.net framework：aspnet_regiis -i

　　　　2) IIS Manager --> Sites --> 相应的site --> 点击右键 --> Edit Permissions --> Security --> Group or user names --> Edit --> Add --> 添加赋予Full Control权限（实质上带有Modify的权限就可以）的Everyone用户