xcode 9 beta 4 maybe issue with bridging header

Question

Migrated from (working) swift 3 to 4 and no code change required. When I build, receive error: Property 'productsDictionary' not found on object of type 'SwagListVC *'.

The .m file has the following:

#import "appName-Swift.h"

...

if ([segue.identifier isEqualToString:@"ShowSwagList"] | [segue.identifier isEqualToString:@"ShowSwagListPad"])

{

SwagListVC *destViewController = segue.destinationViewController;

destViewController.title = NSLocalizedString(@"Products", @"Product List");

destViewController.productsDictionary = self.productsDict; //this is where the error is received

}

The swift file SwagListVC has the following:

var productsDictionary = [String:[String]]() //sent via segue from DetailedTableViewController

Randomly between clean/build will receive "appName-Swift.h" not found, but will go away. Next build will result in Property not found error. All ok in 8.3.3 (swift 3.1).

Swift

774

Posted by

hishak

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Answer 1

Have you tried putting `@objc` annotation?

In Swift 4, you need to put explicit `@objc` annotations to almost all members you want to expose to Objective-C side. The migrator should have shown you a dialog about `@objc` inference. (At least Xcode 9 beta 3 and beta 4 have shown it to me.)

@objc var productsDictionary = [String:[String]]()  //sent via segue from DetailedTableViewController

Posted by

OOPer

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Answer 2

Have you tried putting `@objc` annotation?

In Swift 4, you need to put explicit `@objc` annotations to almost all members you want to expose to Objective-C side. The migrator should have shown you a dialog about `@objc` inference. (At least Xcode 9 beta 3 and beta 4 have shown it to me.)

@objc var productsDictionary = [String:[String]]()  //sent via segue from DetailedTableViewController

Posted by

OOPer

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xcode 9 beta 4 maybe issue with bridging header

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