title: how to overcome Android Studio cannot resolve symbol for android classes
body: <p>I'v just installed Android Studio 0.8.2 for my first time and I have a lot of "Cannot resolve symbol" errors.
  The errors occur on both new projects and projects which were exported from eclipse.</p>
  
  <p>JDK version: jdk1.8.0_11</p>
  
  <p>Android studio errors:
  <img src="https://i.stack.imgur.com/wYsnF.png" alt="Android studio errors"></p>
  
  <p>Project's grade file
  <img src="https://i.stack.imgur.com/K3I0b.png" alt="enter image description here"></p>