Configuration item not declared

Question

I am working on Visual Studio 2012 Express Edition. I added the App.config XML file as follows:

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

The first thing that happens is a warning that says: "The Configuration item has not been declared." Does anyone know why this is happening? It seems that elements cannot be declared internally until this is resolved.

Thank!

This is all 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=""/> 

Answer 1

I had the same problem. This is not a mistake, it is just a warning; therefore, your application must compile. I used the following simple configuration file and the warning is still being generated.

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

This is a problem raised on the MSDN website, but it does not seem to have been satisfactorily resolved. See the link below:

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

Answer 2

Go to the XML menu (menu item at the top of the visual studio), select the schemes and find DotNetConfig.xsd and select this scheme.

Your problem will be exactly solved.

Answer 3

 <configuration xmlns="schema URL"> <!-- configuration settings --> </configuration> 

make changes as above and try

Answer 4

I had to -> Go to the XML menu (menu item at the top of the visual studio) select the schemes and select DotNetConfig.xsd and RazorCustomSchema.xsd and EntityFrameworkConfig_6_1_0.xsd

Answer 5

Select this scheme. Dotnetconfig.xsd

XLM menu ..... Visual Studio

Works great.

Answer 6

Visual Studio 2013 Express Edition lacks DotNetConfig.xsd ( https://connect.microsoft.com/VisualStudio/feedback/details/817322/dotnetconfig-xsd-files-not-present-in-vs-2013-express-for-desktop )

So, to get rid of the warning in VS 2013 Express:

• get a copy of DotNetConfig.xsd from another system or from the Internet (I used https://gist.github.com/eed3si9n/5dd7dd98ad2b3f668928b23477de35a3 )
• download to C: \ Program Files (x86) \ Microsoft Visual Studio 12.0 \ Xml \ Schemas
• add circuit after Ramakrishna answer

The warning should disappear.

Answer 7

I only have this pop-up warning appeared in the auto-generated XML file when working on the xaml project.

Using Debug-> Clean Solution and Debug-> Rebuild Solution fixed this. You might want to try this out before you get a feel for the diagrams.