title: After transferring android studio project from PC to Mac my Google map won't show
body: <p>After transferring my android studio project from my PC to my Mac my Google map won't appear on my app. I get this error when trying to run it from my Mac : </p>
  
  <p>"Google Maps Android API﹕ Failed to load map. Error contacting Google servers.". </p>
  
  <p>It worked when I ran it from my PC before I transferred to project. Does anyone know what aspects of the project wouldn't get transferred over that would be causing this error?</p>