Question

I have some codes as below

#import <UIKit/UIKit.h>

@interface ViewMoreSettingController : UIViewController <  UITableViewDelegate,     UITableViewDataSource >
{}



@end




#import "ViewMoreSettingController.h"


@implementation ViewMoreSettingController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
    // Custom initialization
}
return self;
}

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
}

- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

@end

// “MoreController.h”

#import <UIKit/UIKit.h>
@class ViewMoreSettingController;


@interface MoreController : UIViewController  <UITableViewDataSource,UITableViewDelegate>{


ViewMoreSettingController *vViewMoreSettingController;
}


@property (retain,nonatomic) ViewMoreSettingController *vViewMoreSettingController;

@end

//——————————“MoreController.m”

#import "MoreController.h"

#import "ViewMoreSettingController.h"


@implementation MoreController

@synthesize vViewMoreSettingController;

-(void)doSomething
{


        ViewMoreSettingController * temController ;
        temController=[[ViewMoreSettingController alloc]initWithNibName:@"ViewMoreSetting" bundle:nil];//a: if remove this line it will compile successfully

        [self.navigationController  pushViewController:vViewMoreSettingController animated:YES];


        [temController release];






   }

it will report

Undefined symbols for architecture i386:
“_OBJC_CLASS_$_ViewMoreSettingController”, referenced from:
objc-class-ref in MoreController.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

if I remove line a: it will compile successfully.

Welcome any comment

Answer 1

We recently were in the same situation. Simple solution is to remove those files from project by only Delete Reference and again add those file into project as add existing files will resolve the issue.