Could Not load nib in bundle

The Error says 2015-09-27 12:37:06.672 Log Your Holiday Final Mockup[6702:331614] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Could not load NIB in bundle: 'NSBundle </Users/aryankashyap/Library/Developer/CoreSimulator/Devices/0C1D2C47-65B3-49E0-B1E4-3AB3F0B415A4/data/Containers/Bundle/Application/D083CB2F-2C5B-4A5D-B4BE-216134050575/Log Your Holiday Final Mockup.app> (loaded)' with name 'raj.xib'' *** First throw call stack: ( 0 CoreFoundation 0x000000010168ef65 exceptionPreprocess + 165 1 libobjc.A.dylib 0x0000000101108deb objc_exception_throw + 48 2 CoreFoundation 0x000000010168ee9d +[NSException raise:format:] + 205 3 UIKit 0x0000000101ffedb1 -[UINib instantiateWithOwner:options:] + 499 4 UIKit 0x0000000101dea84d -[UIViewController loadViewFromNibNamed:bundle:] + 381 5 UIKit 0x0000000101deb179 -[UIViewController loadView] + 178 6 UIKit 0x0000000101deb47c -[UIViewController loadViewIfRequired] + 139 7 UIKit 0x0000000101debc7d -[UIViewController view] + 27 8 Log Your Holiday Final Mockup 0x0000000100bc16fe _TFC29Log_Your_Holiday_Final_Mockup34DomesticDestinationsViewController11viewDidLoadfS0_FT_T + 590 9 Log Your Holiday Final Mockup 0x0000000100bc2232 TToFC29Log_Your_Holiday_Final_Mockup34DomesticDestinationsViewController11viewDidLoadfS0_FT_T + 34 10 UIKit 0x0000000101deb931 -[UIViewController loadViewIfRequired] + 1344 11 UIKit 0x0000000101e2ec26 -[UINavigationController _layoutViewController:] + 54 12 UIKit 0x0000000101e2f4dd -[UINavigationController _updateScrollViewFromViewController:toViewController:] + 433 13 UIKit 0x0000000101e2f633 -[UINavigationController _startTransition:fromViewController:toViewController:] + 116 14 UIKit 0x0000000101e30879 -[UINavigationController _startDeferredTransitionIfNeeded:] + 890 15 UIKit 0x0000000101e3167d -[UINavigationController __viewWillLayoutSubviews] + 57 16 UIKit 0x0000000101fc963d -[UILayoutContainerView layoutSubviews] + 248 17 UIKit 0x0000000101d1111c -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 710 18 QuartzCore 0x00000001067d836a -[CALayer layoutSublayers] + 146 19 QuartzCore 0x00000001067ccbd0 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 366 20 QuartzCore 0x00000001067cca4e _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 24 21 QuartzCore 0x00000001067c11d5 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 277 22 QuartzCore 0x00000001067ee9f0 _ZN2CA11Transaction6commitEv + 508 23 UIKit 0x0000000101c5b1b6 _UIApplicationHandleEventQueue + 7183 24 CoreFoundation 0x00000001015bb0a1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 17 25 CoreFoundation 0x00000001015b0fcc __CFRunLoopDoSources0 + 556 26 CoreFoundation 0x00000001015b0483 __CFRunLoopRun + 867 27 CoreFoundation 0x00000001015afe98 CFRunLoopRunSpecific + 488 28 GraphicsServices 0x000000010628dad2 GSEventRunModal + 161 29 UIKit 0x0000000101c60676 UIApplicationMain + 171 30 Log Your Holiday Final Mockup 0x0000000100bc652d main + 109 31 libdyld.dylib 0x00000001044fa92d start + 1 ) libc++abi.dylib: terminating with uncaught exception of type NSException (lldb)

the code is:

import UIKit

class DomesticDestinationsViewController: UIViewController {

    @IBOutlet var destScrollView: UIScrollView!

    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        let raj : Rajasthan = Rajasthan(nibName :  "raj.xib" , bundle : nil)
        let him : Himachal_Pradesh = Himachal_Pradesh(nibName : "HimachalPradesh.xib" , bundle : nil)

        self.addChildViewController(raj)
        self.destScrollView.addSubview(raj.view)
        self.didMoveToParentViewController(self)

        self.addChildViewController(him)
        self.destScrollView.addSubview(him.view)
        self.didMoveToParentViewController(self)

        var himFrame  : CGRect = him.view.frame
        himFrame.origin.x = self.view.frame.width
        him.view.frame = himFrame

        self.destScrollView.contentSize = CGSizeMake(self.view.frame.width * 2, self.view.frame.size.height)


    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        // Get the new view controller using segue.destinationViewController.
        // Pass the selected object to the new view controller.
    }
    */

}