title: Mono 3.0/Debian/asp.net - Method not found: 'System.Configuration.IConfigurationSectionHandler.Create
body: <p>Debian Sid, Mono 3.0. I'm trying to run mvc application (it worked before upgrading mono to 3.0). This is exception thrown:</p>
  
  <pre><code>Exception caught during reading the configuration file:
  System.MissingMethodException: Method not found: 'System.Configuration.IConfigurationSectionHandler.Create'.
    at System.Configuration.ClientConfigurationSystem.System.Configuration.Internal.IInternalConfigSystem.GetSection (System.String configKey) [0x00000] in &lt;filename unknown&gt;:0 
    at System.Configuration.ConfigurationManager.GetSection (System.String sectionName) [0x00000] in &lt;filename unknown&gt;:0 
    at System.Configuration.ConfigurationManager.get_AppSettings () [0x00000] in &lt;filename unknown&gt;:0 
    at Mono.WebServer.Apache.Server.get_AppSettings () [0x00000] in &lt;filename unknown&gt;:0 
    at Mono.WebServer.Apache.Server+ApplicationSettings..ctor () [0x00000] in &lt;filename unknown&gt;:0 
  </code></pre>
  
  <p>I've also found tip to make change in /usr/bin/mod-mono-server4 from:</p>
  
  <pre><code>#!/bin/sh
  exec /usr/bin/mono $MONO_OPTIONS "/usr/lib/mono/4.0/mod-mono-server4.exe" "$@"
  </code></pre>
  
  <p>To:</p>
  
  <pre><code>#!/bin/sh
  exec /usr/bin/mono $MONO_OPTIONS "/usr/lib/mono/4.5/mod-mono-server4.exe" "$@"
  </code></pre>
  
  <p>Unfortunatelly, there is no such file: /usr/lib/mono/4.5/mod-mono-server4.exe (no such file in /usr/lib/mono/4.5/ directory).</p>
  
  <p>Do you have any ideas what's wrong? My application is ServiceStack simple webpage and it works on mono 2.10. But it doesn't work anymore after upgrade to 3.0.</p>