I started learning Swift this week. I ran into my first time consuming problem when I tried to import my legacy Objective C classes into my Swift code. There are lots of good instructions on how to accomplish this task.
Unfortunately, I skipped over the one comment that said to include Foundation.h into my Objective C code:
Without it, you will see a lot of Unknown type error messages (e.g.
/Users/melling/Dropbox/dev/ios/Clock/Clock/Number.h:13:30: Unknown type name ‘NSInteger’)
@interface Numbers : NSObject
@property(assign, nonatomic) NSInteger numericalValue;
@property(assign, nonatomic) NSInteger dictId;
@property(strong, nonatomic) NSString *arabic;