title: google maps V2 “Unfortunately app has Stopped”
body: <p>I just begin to learn Android .take 4 days to try work maps view but not work .that error Unfortunately the app has stopped
  <img src="https://i.stack.imgur.com/UiMYl.jpg" alt="manifest"></p>
  
  <p><img src="https://i.stack.imgur.com/ZN6ea.jpg" alt="manifest"></p>
  
  <p><img src="https://i.stack.imgur.com/CJBnj.jpg" alt="mainActivty.java"></p>
  
  <p><img src="https://i.stack.imgur.com/Chjoo.jpg" alt="activity"></p>