title: ConfigurationManager not declared - Have dll
body: <p>Quick background: I have a VB.NET application in which I was previously using ConfigurationSettings.AppSettings to read from app.config, and got an error message to change it to System.Configuration.ConfigurationManager.AppSettings (as the first way is now obsolete)  </p>
  
  <p>I did so, and I even have a reference to System.Configuration.dll AND the Imports statement at the top, but I am getting a "Name ConfigurationManager not declared" error message.  Any suggestions?</p>
  
  <p>CODE:
  It's pretty straightforward - I'm just checking if something exists, and if it does, I read from it:</p>
  
  <pre><code>If Not Exists(ConfigurationManager.AppSettings.Get(rep &amp; "Email")) Then
          Return False
  End If
  
  message = ReadAllText(ConfigurationManager.AppSettings.Get(rep &amp; "Email"))
  </code></pre>