Question

I am trying to compile my game and an error that shouldn’t be coming up is.

These are the files for my class:

Circle.h:

#import <UIKit/UIKit.h>

@interface Circle : NSObject
{

}
@property (readwrite, assign) CGPoint Center;
@property (readwrite, assign) float Radius;

+ (Circle *) CircleMakeFromCenter:(CGPoint)center radius:(float)radius;

@end

Circle.m:

#import "Circle.h"

@implementation Circle
@synthesize Center;
@synthesize Radius;

+ (Circle *) CircleMakeFromCenter:(CGPoint)center radius:(float)radius{
    Circle *c = [[Circle alloc] init];
    c.Center = center;
    c.Radius = radius;

    return c;
}

@end

It is bring up an error saying that Radius is a duplicate symbol.

Why would it bring up this error?

Answer 1

The most common reason for this sort of error in Objective-C is that you have put this in one of your files accidentally:

#import "Circle.m"

when you should have put this:

#import "Circle.h"