title: c# - File not found exception - System.Runtime, Version=4.1.1.0
body: <p>As soon as I instantiate the c# driver in my windows service with </p>
  
  <p><code>MongoDbClient = new MongoClient(Settings.Default.OpsMgrConnStr);</code> </p>
  
  <p>my server process is crashing with an error</p>
  
  <pre><code>Error: FileNotFoundException: Die Datei oder Assembly "System.Runtime, Version=4.1.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" oder eine Abhängigkeit davon wurde nicht gefunden. Das System kann die angegebene Datei nicht finden.
  </code></pre>
  
  <p>This happens since I had to update in NuGet all my libraries and dependencies.</p>
  
  <p>Some research (actually some hours.....) showed me the following <a href="https://jira.mongodb.org/browse/CSHARP-2033" rel="nofollow noreferrer">bug</a> filed in the mongodb jira. I need a workaround, can't wait for months until V2.6 is released.</p>
  
  <p>Can anybody help and tell me how I need to setup my <code>app.config</code> file to sort this out??</p>
  
  <p>Many thanks! </p>