Ambiguous use of 'init'

Question

I try to initial my class with block (closure) but I got

Ambiguous use of 'init'

all the time, my class in objective c and I try to use it in swift4

Objc init

typedef void (^updateCoordinate)(CLLocationCoordinate2D coordinate);

- (instancetype)initWithCoordinate:(CLLocationCoordinate2D)coordinate Dragable:(BOOL)isDragable updateCoordinate:(updateCoordinate)updateCoordinate;

Swift init

let map = FAMapViewController.init(coordinate: CLLocationCoordinate2DMake(0, 0), dragable: true) { (coordinate) in  }

NS_SWIFT_NAME does not help me, I got same issue any advice Please .

Answer 1

Ambiguous use of 'init' means the signature of the init call you're making in your Swift can't be matched to an init in the target class.

I've seen this error caused by simple mistakes in the call site - like capitalisation being incorrect. For example in your Swift init call you have a lowercase dragable: true but in the Objc init you have Dragable:(BOOL)

StackOverflow is full of examples of incorrect capitalisation, e.g.:

IOS: Ambiguous Use of init(CGImage)

SCNSceneSource init is giving Ambiguous use of 'init(URL:options:)' error