错误页面显示：
Configuration Error
Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message: The data at the root level is invalid. Line 104, position 17.

Source Error:

Line 102: </system.web>
Line 103:
Line 104:</configuration>
Line 105:

实在不明白什么原因。。。查了半天，Web.config里好象没错啊！
大哥大姐们帮忙！！！！！

我就添了这一段。。。
<configuration>
<appSettings>
<add key="ConnectionString" value="server=localhost;database=Xuexi;uid=sa;password=" />
</appSettings>