Ultimate Catalyst Guide

There is one issue on beta 2 which means that you need to add a bridging header to your project and import a header file in there if you want to use the NSTouchbar or NSToolbar APIs.

1. Add a new bridging header to your project, say bridge-me.h (If you don't have a bridging header yet)
2. In your target Build Settings set the Objective-C Bridging Header value to your new bridging header ("MyApp/bridge-me.h")

Make sure to have the right path for the bridging header.

Then, insert the following code in your bridging header:

#import <Foundation/Foundation.h>
#import <UIKit/NSToolbar+UIKitAdditions.h>
#import <UIKit/NSTouchbar+UIKitAdditions.h>