未声明配置元素 [英] The configuration element is not declared

问题描述

我正在 Visual Studio 2012 Express Edition 中做一些工作.我添加了一个 App.config XML 文件，如下所示:

I'm doing some work in Visual Studio 2012 Express Edition. I have added an App.config XML file as follows:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
</configuration>

发生的第一件事是出现一个警告，提示'configuration' 元素未声明".有谁知道为什么会这样?在解决此问题之前，似乎无法在其中声明元素.

The first thing that happens is a warning comes up that says "The 'configuration' element is not declared". Does anyone know why this is happening? It looks like elements can not be declared inside of until this is resolved.

谢谢！

这是整个 XML:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
<appSettings>
<add key="Version" value="779" />
<add key="TimeOut" value="60000" />
<add key="LogFileName" value="Log.txt" />
<!-- your Developer Id with eBay -->
<add key="Environment.DevId" value="" />
<!-- your Application Id with eBay -->
<add key="Environment.AppId" value="" />
<!-- your Application Certificate with eBay -->
<add key="Environment.CertId" value="" />
<!-- API Server URL -->
<!-- For production site use: https://api.ebay.com/wsapi -->
<!-- For Sandbox use: https://api.sandbox.ebay.com/wsapi -->
<add key="Environment.ApiServerUrl" value="https://api.sandbox.ebay.com/wsapi" />
<!-- EPS Server URL -->
<!-- For production site use: https://api.ebay.com/ws/api.dll"/-->
<add key="Environment.EpsServerUrl" value="https://api.sandbox.ebay.com/ws/api.dll" />
<!-- eBay Signin URL -->
<!-- For production site use: https://signin.ebay.com/ws/eBayISAPI.dll?SignIn -->
<!-- https://signin.sandbox.ebay.com/ws/eBayISAPI.dll?SignIn -->
<add key="Environment.SignInUrl" value="https://signin.sandbox.ebay.com/ws/eBayISAPI.dll?SignIn" />
<!-- ViewItem URL -->
<!-- For production site use: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;item={0} -->
<add key="Environment.ViewItemUrl" value="http://cgi.sandbox.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;item={0}" />
<!-- token is for both API server and EPS server -->
<add key="UserAccount.ApiToken" value="" />
<!-- eBay site ID -->
<add key="UserAccount.eBayUserSiteId" value="0" />
<add key="logexception" value="true"/>
<add key="logmessages" value="true"/>
<add key="logsdkmessages" value="true"/>
<add key="logsdk" value="true"/>
<add key="logfile" value="Log.txt"/>
<!-- Rule Name-->
<add key="RuName" value=""/>
<!-- Set this if you access eBay API server behind a proxy server-->
<add key="Proxy.Host" value =""/>
<add key="Proxy.Port" value =""/>
<!-- set proxy server username/password if necessary-->
<add key="Proxy.Username" value=""/>
<add key="Proxy.Password" value=""/>

推荐答案

我遇到了同样的问题.这不是错误，它只是一个警告；所以你的应用程序应该仍然可以编译.我使用了以下简单的配置文件，但仍然产生警告.

I had the same issue. It is not an error, it is simply a warning; so your application should still compile. I used the following simple config file and the warning is still produced.

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <startup> 
        <supportedRuntime 
             version="v4.0"sku=".NETFramework,
             Version=v4.5"/>
    </startup>
</configuration>

这是MSDN网站上提出的问题，但似乎没有得到令人满意的解决.请参阅以下链接:

It is an issue that has been raised on the MSDN website, but it does not seem to have been satisfactorily resolved. See link below:

http://social.msdn.microsoft.com/Forums/en-US/Vsexpressvcs/thread/18a1074f-668f-4fe3-a8d9-4440db797439

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