打开网站时，我一直收到此错误。
<fieldset>
HTTP Error 500.19 - Internal Server Error
The requested page cannot be accessed because the related configuration data for the page is invalid.
</fieldset>
<fieldset><legend>Detailed Error Information</legend>
Module IIS Web Core
Notification BeginRequest
Handler Not yet determined
Error Code 0x80070032
Config Error The configuration section 'connectionStrings' cannot be read because it is missing a section declaration
Config File \\?\C:\inetpub\wwwroot\CM_Live\web.config
Requested URL http://localhost:80/CM_Live
Physical Path C:\inetpub\wwwroot\CM_Live
Logon Method Not yet determined
Logon User Not yet determined
</fieldset>
<fieldset><legend>Config Source</legend>
22: </configSections>
23: <connectionStrings>
24: <add name="DWG_ConnectionString" connectionString="Data Source=server;Initial Catalog=Data_;Integrated Security=True" providerName="System.Data.SqlClient"/>
</fieldset>
我用Google搜索错误，并与同样错误的人一起阅读了其他网站，但他们的解决方案对我不起作用。