タイプMyViewControllerがプロトコル 'STPPaymentContextDelegate'に準拠していません

Question

私はクラス 'STPPaymentContextDelegate'に準拠するようにクラスに拡張機能を作成しています。何らかの理由で、コンパイラは、エクステンション内のすべてのメソッドがすべて正しく宣言されているにもかかわらず、不平を言っています。ここで

extension PaymentPopupViewController: STPPaymentContextDelegate { 

func paymentContext(_ paymentContext: STPPaymentContext, didFailToLoadWithError error: Error) { 
    self.delegate?.paymentPopupViewController(controller: self, didFinishPerhapsWithError: error as NSError?) 
} 

func paymentContextDidChange(_ paymentContext: STPPaymentContext) { 
    if paymentContext.loading { 
     self.indicatorView.startAnimating() 
    } else { 
     self.indicatorView.stopAnimating() 
     if paymentContext.selectedPaymentMethod == nil { 
      self.presentPaymentMehtodsViewController() 
     } 
    } 
    self.indicatorView.isHidden = !paymentContext.loading 
    self.paymentMethodLabel.isHidden = paymentContext.loading 
    self.changePaymentMethodButton.isEnabled = !paymentContext.loading 
    self.payButton.isEnabled = !paymentContext.loading && paymentContext.selectedPaymentMethod != nil 
    self.paymentMethodLabel.text = paymentContext.selectedPaymentMethod?.label 
} 

func paymentContext(_ paymentContext: STPPaymentContext, didCreatePaymentResult paymentResult: STPPaymentResult, completion: STPErrorBlock) { 
    fatalError("Method isn't implemented because our backend makes a charge, not the app.") 

} 

func paymentContext(_ paymentContext: STPPaymentContext, didFinishWith status: STPPaymentStatus, error: Error?) { 
    if status == .userCancellation { 
     return 
    } 
    self.delegate?.paymentPopupViewController(controller: self, didFinishPerhapsWithError: error as NSError?) 
} 

プロトコルで述べたように、デリゲートメソッドです：

@protocol STPPaymentContextDelegate <NSObject> 

- (void)paymentContext:(STPPaymentContext *)paymentContext didFailToLoadWithError:(NSError *)error; 
- (void)paymentContextDidChange:(STPPaymentContext *)paymentContext; 
- (void)paymentContext:(STPPaymentContext *)paymentContext 
didCreatePaymentResult:(STPPaymentResult *)paymentResult 
     completion:(STPErrorBlock)completion; 
- (void)paymentContext:(STPPaymentContext *)paymentContext 
didFinishWithStatus:(STPPaymentStatus)status 
      error:(nullable NSError *)error; 

は、どのように私はこの問題の解決については行くのですか？

Answer 1

実装にはいくつかの誤りがあります。

この

func paymentContext(_ paymentContext: STPPaymentContext, didFailToLoadWithError error: Error) 

func paymentContext(_ paymentContext: STPPaymentContext, didFailToLoadWithError error: NSError) 

とを交換し、私はまだこの

func paymentContext(_ paymentContext: STPPaymentContext, didFinishWith status: STPPaymentStatus, error: Error?) 

で

func paymentContext(_ paymentContext: STPPaymentContext, didFinishWithStatus status: STPPaymentStatus, error: NSError?)