title: Task does not contain a definition for Run method
body: <p>I tried to implement multithreading in my code, 1st time. When i tried to use </p>
  
  <pre><code>Task T = Task.Run(() =&gt; { });
  </code></pre>
  
  <p>Visual Studio is still underlines Run() with statement "Task does not contain a definition 'Run' "</p>
  
  <p>I'm using System.Threading.Tasks;
  Internet knows nothing about this problem</p>