title: could not cast value of type 'Swift._ContiguousArrayStorage<Swift.AnyObject>' to 'NSMutableArray'
body: <p>I accidently updated iOS version in my phone from 10.3.3 to 11.0.3. Because of that I had to upgrade my xcode to latest 9.1 version. Now when I run my code in xcode 9.1 it appears </p>
  
  <blockquote>
    <p>could not cast value of type
    'Swift._ContiguousArrayStorage' to 'NSMutableArray'</p>
  </blockquote>
  
  <p>It seems to be there is no longer conversion from 'AnyObject' array to 'NSMutableArray'. But I have used this conversion throughout my code. I have spend almost a day trying using [[String : AnyObject]] instead [AnyObject] which was not a good idea as it affects throughout the code and it feels like I'm doing my code again from the scratch. Can anyone please suggest a better solution.? </p>