title: Xcode - The property may not be available in this context
body: <p>Looks like the Xcode introduces more and more new problems to developers.
  Does anyone know what the hell is this issue and how to get rid of it?: <strong>The property is defined on XXX, and may not be available in this context.</strong></p>
  <p>The property exists in this scope and the code runs without any problems, but auto-complete is broken as always... <a href="https://i.stack.imgur.com/54Yqq.png" rel="noreferrer"><img src="https://i.stack.imgur.com/54Yqq.png" alt="enter image description here" /></a></p>