Using Project Settings creates an app.config and dozens of errors about "Could not find schema information for the element...

Question

I am trying to work with Application settings.  I would just like to put together a very simple example of using these, but I can't get the most basic example to work.  Virtually every tag regarding the new Settings produces an Error "Could not find the schema information for the element "applicationSettings". or the element "Settings" etc. etc.  I am not using IIS, this is not a Web Project, and I am not working with User Settings.  Just simple read-only Application Settings.  I've read every MSDN page regarding this subject, I don't see that I am missing a reference - HELP !!!
REPRODUCING THE PROBLEM:
Step 1. Create a new C# solution and Windows Forms project. 
Step 2. Add a reference to System.configuration
Step 3. Right click the project, choose Properties, then Settings.
Step 4. Using the Settings Designer, create ONE setting called "MySetting" as a String with the value "MyValue".
RESULT: Observe the Errors like these, complaining about all of the Settings tags and elements.
Message 1 Could not find schema information for the element 'applicationSettings'. 
Message 2 Could not find schema information for the element 'LoadOriginalLists.Properties.Settings'. 
Message 3 Could not find schema information for the element 'setting'. 
 HERE IS MY APP.CONFIG, AS GENERATED BY THE SETTING DESIGNER TOOL:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
<section name="LoadOriginalLists.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</sectionGroup>
</configSections>
<applicationSettings>
<LoadOriginalLists.Properties.Settings>
<setting name="MySetting" serializeAs="String">
<value>MyValue</value>
</setting>
</LoadOriginalLists.Properties.Settings>
</applicationSettings>
</configuration>

Answer 1

Ummmm... okay so these are Messages that are in the Error List.  Whether or not they are actually Errors is debatable.  They are in the Error List, so they are errors. 
The application runs, so my question is slightly changed to the following.
I would like to use Application Settings.  However, having settings in my app.config pollutes my Error List with a bunch of meaningless messages like "Could not find the schema information for...".  These messages then hide real errors. 
Am I missing some setting or is there something I can do to make Visual Studio not show me these messages?