大家好，我运行 达达Asp.net留言本源码(VS2008)&nbsp;&nbsp;主页的时候出现以下错误提示，请大家帮忙解决吧，谢谢了！<br/><br/><i>配置错误</i> <font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif"><b>说明: </b>在处理向该请求提供服务所需的配置文件时出错。请检查下面的特定错误详细信息并适当地修改配置文件。 <br/><br/><b>分析器错误信息: </b>不允许有子节点。<br/><br/><b>源错误:</b> <br/><br/><table class="t_table" cellspacing="1" cellpadding="4" style="width:98%;background: #ffffcc;"><tr><td>行 56: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;compilers&gt;行 57: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;compiler language=&quot;c#;cs;csharp&quot; extension=&quot;.cs&quot; type=&quot;Microsoft.CSharp.CSharpCodeProvider,System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089&quot; warningLevel=&quot;4&quot;&gt;<font color="red">行 58: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;providerOption name=&quot;CompilerVersion&quot; value=&quot;v3.5&quot;/&gt;</font>行 59: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;providerOption name=&quot;WarnAsError&quot; value=&quot;false&quot;/&gt;&lt;/compiler&gt;行 60: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;compiler language=&quot;vb;vbs;visualbasic;vbscript&quot; extension=&quot;.vb&quot; type=&quot;Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089&quot; warningLevel=&quot;4&quot;&gt;</td></tr></table><br/><b><font face="Verdana">源文件: </font></b>G:\aspnet\dadaGB\web.config<b><font face="Verdana">&nbsp;&nbsp;&nbsp;&nbsp;行: </font></b>58 <br/><br/><b><font face="Verdana">版本信息:</font></b> Microsoft .NET Framework 版本:2.0.50727.42; ASP.NET 版本:2.0.50727.42 <br/><br/><br/>应该如何修改呢，请赐教！</font>