Compilation error when running ASP.NET application
<p>Getting this compile error when I debug the ASP.NET project. How do I add the reference properly?</p>

<blockquote>
  <p><code>Compilation Error</code></p>
  
  <p><code>Description: An error occurred during
  the compilation of a resource required
  to service this request. Please review
  the following specific error details
  and modify your source code
  appropriately.</code> </p>
  
  <p><code>Compiler Error Message: CS0246: The
  type or namespace name 'BasePage'
  could not be found (are you missing a
  using directive or an assembly
  reference?)</code></p>
  
  <p><code>Source Error:</code></p>
  
  <p><code>Line 8:  namespace DisplayPage.UI
  Line 9:  { Line 10:     public partial
  class _Default : BasePage Line 11:<br>
  { Line 12:         protected void
  Page_Load(object sender, EventArgs e)</code></p>
</blockquote>

<p>I am using .NET 3.5 and vs 2008 </p>
