title: "CoreBluetooth[API MISUSE] CBCentralManager can only accept commands while in the powered on state " error while trying to range beacons
body: <p>I'm trying to range estimote beacons in my app.
  But when app ranges beacons after firing <code>[beaconManager:didRangeBeacons:inRegion:]</code> method,it outputs "<strong>CoreBluetooth[API MISUSE] CBCentralManager can only accept commands while in the powered on state</strong> " into debug console,and also i'm not able to connect to beacon for changing some values.I can range beacons and read values which don't require connection to beacon,such as minor,major,proximity etc.,but I also need to change them.</p>
  
  <p>What's my problem?</p>
  
  <p>Thanks in advance!</p>