Re: 'Cocoa/Cocoa.h' file not found
Re: 'Cocoa/Cocoa.h' file not found
- Subject: Re: 'Cocoa/Cocoa.h' file not found
- From: Fritz Anderson <email@hidden>
- Date: Thu, 05 Mar 2015 12:41:52 -0600
On 2 Mar 2015, at 6:25 PM, Carl Hoefs <email@hidden> wrote:
> I'm trying to build/update an old project for OS X 10.9, but Xcode 6.1.1 is complaining:
> 'Cocoa/Cocoa.h' file not found
>
> The reference is from the project's prefix.pch file:
> #ifdef __OBJC__
> #import <Cocoa/Cocoa.h>
> #endif
>
> I've re-added Foundation, Cocoa, and AppKit frameworks, set the SDK to 10.9, and updated the project settings at Xcode’s prompting. What else must I do?
Just for grins, turn module support on in the build settings, and replace the above with
#ifdef __OBJC__
@import Cocoa;
#endif
I’d gladly hear why your setup didn’t work — it’s the way Xcode templates do it — but that would involve more information.
@import has the advantage of loading the equivalent of the precompiled Cocoa/Cocoa.h (and similarly for other frameworks) without the need for a precompiled header. In fact, the framework #includes are (I believe) implemented as @import behind the scenes, which is why the current templates do away with .pch and #import them in every header.
There are other effects (advantages, unless you have legacy problems), but I won’t filibuster.
— F
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