GMSMapView not showing anything
<p>I currently have a UIView in my View Controller which I have changed to a GMSMapView in the Interface Builder, but nothing shows up, as shown in the picture below:</p>

<p><a href="https://i.stack.imgur.com/c5jsV.png" rel="noreferrer"><img src="https://i.stack.imgur.com/c5jsV.png" alt="enter image description here"></a></p>

<p>Here is the code that I am using</p>

<pre><code>    let lat = 47.07903
    let long = -122.961283

    let camera = GMSCameraPosition.cameraWithLatitude(lat, longitude: long, zoom: 10)
    let map = GMSMapView.mapWithFrame(CGRectZero, camera: camera)
    map.myLocationEnabled = true
    map.delegate = self
    self.mapView.addSubview(map)

    let marker = GMSMarker()
    marker.position = CLLocationCoordinate2DMake(lat, long)
    marker.map = self.mapView
</code></pre>

<p>I have declared <code>mapView</code> as such using drag and drop:</p>

<pre><code>@IBOutlet var mapView: GMSMapView!
</code></pre>

<p>Any help here would be much appreciated. I have tried a lot of different things! Thanks!</p>