Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Build a Game with Sprite Kit Artificial Intelligence and Sound Adding Sound Effects

George Vardikos
George Vardikos
6,889 Points
Posted by George Vardikos
George Vardikos
6,889 Points

Problem when declaring the property

When trying to declare the property inside the @interface className() {} (implementation file) I got an error: "a parameter list without types is only allowed in a function definition"

However, when I add it inside the header file there is no error.

I have not seen this series from the beginning, is there a video discussing this?

Thanks

1 Answer

Enara L. Otaegi
Enara L. Otaegi
13,107 Points
Enara L. Otaegi
Enara L. Otaegi
13,107 Points

If you put curly braces you don't need to declare the variables as properties, if you want a property try deleting curly braces and declaring the properties inside the interface declaration in your implementation file like this:

@interface className ()
@property (strong) NSString *aString;
@end