title: cannot implicitly convert type system.collections.generic.IEnumerable<string> to string[]
body: <p>Trying to solve and getting to following error</p>
  
  <pre><code>public String[] Any()
  {                            
      var lastSixMonths = Enumerable.Range(0, 6).Select(i =&gt; DateTime.Now.AddMonths(i - 6)).Select(date =&gt; date.ToString("MM/yyyy"));
  
      return lastSixMonths;
  }
  </code></pre>