Initializer for conditional binding must have Optional type, not 'CLLocation'

[Thaddäus]

<div class="bbWrapper">Hi Leute....<br /> <br /> Das hier ist meine Methode in Xcode 9 und Swift 4. Allerdings wirft sie mir den untenstehenden Fehler aus... Irgendjemand eine Idee wo mein Denkfehler liegt?<br /> <br /> <div class="bbCodeBlock bbCodeBlock--screenLimited bbCodeBlock--code"> <div class="bbCodeBlock-title"> Code: </div> <div class="bbCodeBlock-content" dir="ltr"> <pre class="bbCodeCode" dir="ltr" data-xf-init="code-block" data-lang=""><code>func showSightingsOnMap(location: CLLocation) { let circleQuery = geoFire!.query(at: location, withRadius: 2.5) _ = circleQuery.observe(GFEventType.keyEntered, with: { (key, location) in if let key = key, let location = location { let anno = PokeAnnotation(coordinate: location.coordinate, pokemonNumber: Int(key)!) self.mapView.addAnnotation(anno) }</code></pre> </div> </div><br /> <blockquote data-attributes="" data-quote="" data-source="" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Initializer for conditional binding must have Optional type, not 'CLLocation' </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Zum Vergrößern anklicken....</a></div> </div> </blockquote></div>

 

[MacApple]

<div class="bbWrapper">Die Variable ‚location‘ ist kein Optional. Deshalb ist das if let Konstrukt überflüssig.</div>

 

[Thaddäus]

<div class="bbWrapper">Besten Dank, hat geklappt...</div>