.net在发布网站时出现的错误

[麦麦_同学]

网上查了一下是服务器上没安装3.5 不过公司因为以前服务器上有很多网站 不知道安装了3.5其他的会不会出错 求解

Server Error in '/' Application.
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: Child nodes not allowed.

Source Error:

Line 70: <compilers>
Line 71: <compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CSharp.CSharpCodeProvider,System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" warningLevel="4">
Line 72: <providerOption name="CompilerVersion" value="v3.5"/>
Line 73: <providerOption name="WarnAsError" value="false"/></compiler>
Line 74: <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" warningLevel="4">


Source File: E:\88jingying\co\co-10-279\web.config Line: 72

Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42

[麦麦_同学]

都很忙吗。。。。

[烈火蜓蜻]

不会，可以安装3.5，这个安装不是覆盖安装，也不是升级安装，几个不同的版本是可以放在一台机器里的，因此，可以安装