title: Linq and DataSetExtensions warnings using .NET Framework 2.0 and C# 3
body: <p>I am receiving the following warnings:</p>
  
  <blockquote>
    <p>Warning   1   Could not resolve assembly
    System.Xml.Linq. The target framework
    required by this assembly (3.5) is
    higher than the project target
    framework. If this reference is
    required by your code, you may get
    compilation
    errors.   ConsoleApplication1</p>
    
    <p>Warning   2   Could not resolve assembly
    System.Data.DataSetExtensions. The
    target framework required by this
    assembly (3.5) is higher than the
    project target framework. If this
    reference is required by your code,
    you may get compilation
    errors.   ConsoleApplication1</p>
    
    <p>Warning   3   The referenced component
    'System.Xml.Linq' could not be found.</p>
    
    <p>Warning   4   The referenced component
    'System.Data.DataSetExtensions' could
    not be found.</p>
  </blockquote>
  
  <p>Do you know how to fix them? My project needs to target .NET2.0, but I am allowed to use C# 3 features if they are supported.</p>