title: Variable binding in a condition requires an initializer/Pattern matching in a condition requires the 'case' keyword
body: <p>Could anyone help me with this error? I'm trying to implement the Facebook Login button for my app.</p>
  
  <pre><code>if var FBSDKAccessToken.currentAccessToken() {
          fetchProfile()
      }
  }
  
  func fetchProfile() {
      print ("fetch profile")
  
      let parameters = ["fields": "email, first_name, last_name, picture.type(large)" ]
      FBSDKGraphRequest(graphPath: "me", parameters: parameters).startWithCompletionHandler { (connection, result, error) in
  
          if error != nil {
              print (error)
              return
          }
  
          if let email = result["email"] as? String {
              print (email)
          }
  
          print (result)
      }
  }
  </code></pre>