Question

I have an Xcode project for my Cocoa application. It’s all Objective-C so far.

Problems started after I added a new .c File from the menu (Add C file and header): test.c and header test.h.

When I try to compile the project now there are thousands of errors. All of them are complaints about syntax errors. For example:

NSObjCRuntime.h: Expected identifier or '(' before '@' token

Both new files, test.c and test.h, do not contain any code, only the default header comments. Something must be really broken with my project configuration. When I remove these two files the project compiles just fine.

The project language is set to C99. Is there anything else I could check?

Thanks,
Mark

Answer 1

if the files you compile include nothing, then your problem is likely in the prefix header (extension: pch)

so you just wrap your library includes based on the language (in the pch):

#ifdef __OBJC__
#import <Foundation/Foundation.h>
#endif