试图编译和运行我的项目时,我遇到了上述错误。这里是一个更详细的研究:链接器命令失败,退出代码1错误
duplicate symbol _timeTick in:
/Users/zstephen/Library/Developer/Xcode/DerivedData/MyStore_2-ejjgywkgxdulkogcohzbzojgqpzp/Build/Intermediates/MyStore 2.build/Debug-iphonesimulator/MyStore.build/Objects-normal/i386/TimeController.o
/Users/zstephen/Library/Developer/Xcode/DerivedData/MyStore_2-ejjgywkgxdulkogcohzbzojgqpzp/Build/Intermediates/MyStore 2.build/Debug-iphonesimulator/MyStore.build/Objects-normal/i386/DeviceDetailViewController.o
ld: 1 duplicate symbol for architecture i386
铛:错误:连接命令,退出代码1失败(使用-v看到调用)
我该如何解决这个问题?提前致谢!
更新:这里是3个文件是用来TIMETICK:
.H:
#import <UIKit/UIKit.h>
int timeTick = 0;
@interface TimeController : UIViewController{
IBOutlet UILabel *labelTime;
}
- (IBAction)startTimer:(id)sender;
@end
.M:
@implementation TimeController
NSTimer *timer;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
labelTime.text = @"0";
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)startTimer:(id)sender {
[timer invalidate];
timer= [NSTimer scheduledTimerWithTimeInterval:60.0 target:(self) selector: (@selector(tick)) userInfo:(nil) repeats:(YES)];
}
-(void)tick{
timeTick++;
NSString *timeString = [[NSString alloc] initWithFormat:@"%d", timeTick];
labelTime.text = timeString;
}
@end
最后,是保存和载入一个单独的文件timeTick进入核心数据。
.M:
NSNumber *timetickNumber = [NSNumber numberWithInt:timeTick];
[newDevice setValue:timetickNumber forKey:@"name"];
错误表示您在两种方法中都将相同的符号_timeTick声明为全局符号。不要这样做。在easm文件中显示_timeTick的声明代码。 – zaph
@Zaph我删除了所有对_timeTick的引用。错误仍然发生。我正在使用一个名为timeTick的int。这是否影响? – PanicDev
可能。发布timeTick的代码,我们可以给你更多的信息。 – user1118321