title: getBluetoothService called with no BluetoothManagerCallback
body: <p>I am getting <code>getBluetoothService() called with no BluetoothManagerCallback</code> as an error frequently in my Android application.</p>
  
  <p>I have no idea what is causing this or anything about bluetooth manager callbacks.  Can anyone give me a good idea of what could be causing this problem or where to start looking.</p>