创建了一个名为ObjCWorkAppMath.m
的NSObject
文件。包含了一些函数在里面,我想在ViewController
使用这个类,的那是编译失败返回了错误:
duplicate symbol _OBJC_METACLASS_$_ObjCWorkAppMath in:
/Users/ctkt/Library/Developer/Xcode/DerivedData/ObjCWorkApp-hgxcjtjhzwxhqxcmxgkpucpfpieq/Build/Intermediates/ObjCWorkApp.build/Debug-iphonesimulator/ObjCWorkApp.build/Objects-normal/i386/ObjCWorkAppMath.o
/Users/ctkt/Library/Developer/Xcode/DerivedData/ObjCWorkApp-hgxcjtjhzwxhqxcmxgkpucpfpieq/Build/Intermediates/ObjCWorkApp.build/Debug-iphonesimulator/ObjCWorkApp.build/Objects-normal/i386/ObjCWorkAppViewController.o
duplicate symbol _OBJC_CLASS_$_ObjCWorkAppMath in:
/Users/ctkt/Library/Developer/Xcode/DerivedData/ObjCWorkApp-hgxcjtjhzwxhqxcmxgkpucpfpieq/Build/Intermediates/ObjCWorkApp.build/Debug-iphonesimulator/ObjCWorkApp.build/Objects-normal/i386/ObjCWorkAppMath.o
/Users/ctkt/Library/Developer/Xcode/DerivedData/ObjCWorkApp-hgxcjtjhzwxhqxcmxgkpucpfpieq/Build/Intermediates/ObjCWorkApp.build/Debug-iphonesimulator/ObjCWorkApp.build/Objects-normal/i386/ObjCWorkAppViewController.o
ld: 2 duplicate symbols for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
试了很多方法也没解决,请高手帮帮忙,多谢多谢。
#import "ObjCWorkAppViewController.h"
#import "ObjCWorkAppMath.m"
@interface ObjCWorkAppViewController ()
@end
@implementation ObjCWorkAppViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end