Compile error trying to use CAGradientLayer

Question

I'm trying to use CAGradientLayer and getting an unhelpful compile error. Can't figure out whats wrong. All I'm doing so far is:

CAGradientLayer *gradient = [CAGradientLayer layer];

I've imported <QuartzCore/QuartzCore.h> and I'm getting the warning >

_OBJC_CLASS_$CAGradientLayer referenced from: objc-class-ref-to-CAGradientLayer symbol(s) not found.

I've tried clean and build but no luck and I can't seem to target anything other than 4.1 in Xcode

Cheers for any help.

You imported the header files, but did you add the quartzcore framework? — Ben, Oct 10 '10 at 23:16

score 30 · Accepted Answer · answered Oct 10 '10 at 23:17

30

You didn't correctly add the QuartzCore framework into your project:

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answered Oct 10 '10 at 23:17

Jacob Relkin

1

Thats lame, I have actually imported it and I have been using it in other parts in my project so didn't think about it. Reimported it and it worked. – Rudiger Oct 10 '10 at 23:18
You were exactly right! Thank you for providing the solution to my problem. – AddisDev Jul 26 '12 at 21:33

score 6 · Answer 2 · answered Oct 10 '10 at 23:14

6

You have to add the QuartzCore-Framework to your project.

answered Oct 10 '10 at 23:14

Matthias Bauch

2 Answers2