我在网上下了一个留言板的源码,然后新建了一个解决方法,执行后就出现了这样的错误!这些错误是什么意思
下面是web.config文件的内容
<?xml version="1.0"?>
<!--
Note: As an alternative to hand editing this file you can use the
web admin tool to configure settings for your application. Use
the Website->Asp.Net Configuration option in Visual Studio.
A full list of settings and comments can be found in
machine.config.comments usually located in
\Windows\Microsoft.Net\Framework\v2.x\Config
-->
<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
<connectionStrings>
<add name="wormbookConnectionString" connectionString="Server=(local);Database=wormbook;uid=sa;pwd=sa;"
providerName="System.Data.SqlClient" />
<add name="killConnectionString" connectionString="Server=(local);Database=master;uid=sa;pwd=sa;"
providerName="System.Data.SqlClient" />
</connectionStrings>
<system.web>
<!--
Set compilation debug="true" to insert debugging
symbols into the compiled page. Because this
affects performance, set this value to true only
during development.
-->
<compilation debug="true" defaultLanguage="c#">
<assemblies>
<add assembly="System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/></assemblies></compilation>
<!--
The <authentication> section enables configuration
of the security authentication mode used by
ASP.NET to identify an incoming user.
-->
<authentication mode="Windows"/>
<!--
The <customErrors> section enables configuration
of what to do if/when an unhandled error occurs
during the execution of a request. Specifically,
it enables developers to configure html error pages
to be displayed in place of a error stack trace.
<customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
<error statusCode="403" redirect="NoAccess.htm" />
<error statusCode="404" redirect="FileNotFound.htm" />
</customErrors>
-->
<sessionState mode="InProc" cookieless="false" timeout="30"/>
<!-- 设置iis的上传限制为4M-->
<httpRuntime useFullyQualifiedRedirectUrl="true" maxRequestLength="409600" executionTimeout="900"/>
</system.web>
</configuration>