How to fix Error: "Could not find schema information for the attribute/element" by creating schema

Question

I have a windows forms application written in VS2010 with C# and get the following errors in the app.config file:

Message 4   Could not find schema information for the attribute 'name'
Message 8   Could not find schema information for the attribute 'name'
Message 12  Could not find schema information for the attribute 'name'
Message 5   Could not find schema information for the attribute 'serializeAs'
Message 15  Could not find schema information for the element 'CCP_Utility.Settings1'
Message 2   Could not find schema information for the element 'CCP_Utility.Properties.Settings'
Message 3   Could not find schema information for the element 'setting'
Message 1   Could not find schema information for the element 'userSettings'
Message 6   Could not find schema information for the element 'value'

What do I have to change in the code to fix this issue? Where can I edit what's in CCP_Utility.Settings1 and CCP_Utility.Properties.Settings ?

Here's the app.config code:

<configuration>
<configSections>
    <sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
        <section name="CCP_Utility.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
        <section name="CCP_Utility.Settings1" type="System.Configuration.ClientSettingsSection, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
    </sectionGroup>
  </configSections>
<userSettings>
  <CCP_Utility.Properties.Settings>
    <setting name="SourceDir" serializeAs="String">
      <value />
    </setting>
    <setting name="TargetDir" serializeAs="String">
      <value />
    </setting>
    <setting name="CorpID" serializeAs="String">
      <value />
    </setting>
  </CCP_Utility.Properties.Settings>
    <CCP_Utility.Settings1>
        <setting name="sourceDir" serializeAs="String">
            <value />
        </setting>
        <setting name="targetDir" serializeAs="String">
            <value />
        </setting>
    </CCP_Utility.Settings1>

   </userSettings>
</configuration>

Answer 1

UPDATE Sept 2015
This answer continues to get upvotes, so I'm going to leave it here since it seems to be helpful to some people, but please check out the other answers from @reexmonkey and @Pressacco first. They may provide better results.

ORIGINAL ANSWER
Give this a shot:

1. In Visual Studio, open your app.config or web.config file.
2. Go to the "XML" menu and select "Create Schema". This action should create a new file called "app.xsd" or "web.xsd".
3. Save that file to your disk.
4. Go back to your app.config or web.config and in the edit window, right click and select properties. From there, make sure the xsd you just generated is referenced in the Schemas property. If it's not there then add it.

That should cause those messages to disappear.

I saved my web.xsd in the root of my web folder (which might not be the best place for it, but just for demonstration purposes) and my Schemas property looks like this:

"C:\Program Files (x86)\Microsoft Visual Studio 10.0\xml\Schemas\DotNetConfig.xsd" "Web.xsd"