My project works fine on one MacBook, but after I transfering it to another MacBook, it crashes. Here is a part of my code: func MusicPlay()     {         Playnow = true         self.ipv.start()                 self.playButton.isHidden = true         self.pauseButton.isHidden = false         var…

    SWIFT_CLASS(“_TtC12palaceCookie18OrangeExchangeUtil”)@interface OrangeExchangeUtil : NSObject – (nonnull instancetype)init OBJC_DESIGNATED_INITIALIZER;- (void)productsRequest:(SKProductsRequest * _Nonnull)request didReceiveResponse:(SKProductsResponse * _Nonnull)response;- (void)paymentQueue:(SKPaymentQueue * _Nonnull)queue updatedTransactions:(NSArray * _Nonnull)transactions;@end}   palaceCookie-Swift.h:353:43: Unknown class name ‘SKPaymentTransactionObserver’; did you mean ‘SKPaymentTransaction’? palaceCookie-Swift.h:353:73: Unknown class name ‘SKProductsRequestDelegate’; did you mean ‘SKProductsRequest’? palaceCookie-Swift.h:353:43: Type argument ‘SKPaymentTransaction’…