It works fine when I install through xcode, but when I export .ipa (Ad hoc) and install it on my iphone through iTunes it crashes. Below is the log file. Please, please please help if someone faced the similar issue.
Last Exception Backtrace:
0 CoreFoundation 0x1828f82d8 __exceptionPreprocess + 132
1 libobjc.A.dylib 0x19411c0e4 objc_exception_throw + 60
2 CoreFoundation 0x1828ff290 +[NSObject(NSObject) doesNotRecognizeSelector:] + 220
3 CoreFoundation 0x1828fc154 ___forwarding___ + 928
4 CoreFoundation 0x1827feccc _CF_forwarding_prep_0 + 92
5 ctapp 0x1001bd84c function signature specialization <Arg[0] = Owned To Guaranteed> of ctapp.ClassListVC.viewDidLoad (ctapp.ClassListVC)() -> () (ClassListVC.swift:49)
6 ctapp 0x1001b9f28 @objc ctapp.ClassListVC.viewDidLoad (ctapp.ClassListVC)() -> () (ClassListVC.swift:0)
7 UIKit 0x187338c84 -[UIViewController loadViewIfRequired] + 692
8 UIKit 0x187338994 -[UIViewController view] + 32
9 UIKit 0x18746ee68 -[UITabBarController transitionFromViewController:toViewController:transition:shouldSetSelected:] + 452
10 UIKit 0x18746eb58 -[UITabBarController _setSelectedViewController:] + 360
11 UIKit 0x187346b6c +[UIView(Animation) performWithoutAnimation:] + 88
12 UIKit 0x187472d90 -[UITabBarController _selectDefaultViewControllerIfNecessaryWithAppearanceTransitions:] + 236
13 UIKit 0x187471c98 -[UITabBarController viewWillAppear:] + 160
14 UIKit 0x18734ff74 -[UIViewController _setViewAppearState:isAnimating:] + 516
15 UIKit 0x1874db328 -[UINavigationController _startCustomTransition:] + 916
16 UIKit 0x1873edef0 -[UINavigationController _startDeferredTransitionIfNeeded:] + 468
17 UIKit 0x1873edcbc -[UINavigationController __viewWillLayoutSubviews] + 56
18 UIKit 0x1873edc3c -[UILayoutContainerView layoutSubviews] + 200
19 UIKit 0x187335760 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 580
20 QuartzCore 0x186c7de1c -[CALayer layoutSublayers] + 152
21 QuartzCore 0x186c78884 CA::Layer::layout_if_needed(CA::Transaction*) + 320
22 QuartzCore 0x186c78728 CA::Layer::layout_and_display_if_needed(CA::Transaction*) + 32
23 QuartzCore 0x186c77ebc CA::Context::commit_transaction(CA::Transaction*) + 276
24 QuartzCore 0x186c77c3c CA::Transaction::commit() + 528
25 QuartzCore 0x186c71364 CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*) + 80
26 CoreFoundation 0x1828b02a4 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 32
27 CoreFoundation 0x1828ad230 __CFRunLoopDoObservers + 360
28 CoreFoundation 0x1828ad610 __CFRunLoopRun + 836
29 CoreFoundation 0x1827d92d4 CFRunLoopRunSpecific + 396
30 GraphicsServices 0x18bfef6fc GSEventRunModal + 168
31 UIKit 0x18739efac UIApplicationMain + 1488
32 ctapp 0x100232c28 main (AppDelegate.swift:25)
33 libdyld.dylib 0x19479aa08 start + 4
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x00000001948b3270 __pthread_kill + 8
1 libsystem_pthread.dylib 0x000000019495116c pthread_kill + 108
2 libsystem_c.dylib 0x000000019482ab14 abort + 108
3 libc++abi.dylib 0x00000001938e9414 abort_message + 112
4 libc++abi.dylib 0x0000000193908b88 default_terminate_handler() + 300
5 libobjc.A.dylib 0x000000019411c3bc _objc_terminate() + 124
6 libc++abi.dylib 0x0000000193905bb0 std::__terminate(void (*)()) + 12
7 libc++abi.dylib 0x0000000193905474 __cxa_throw + 132
8 libobjc.A.dylib 0x000000019411c200 objc_exception_throw + 344
9 CoreFoundation 0x00000001828ff28c +[NSObject(NSObject) doesNotRecognizeSelector:] + 216
10 CoreFoundation 0x00000001828fc150 ___forwarding___ + 924
11 CoreFoundation 0x00000001827fecc8 _CF_forwarding_prep_0 + 88
12 ctapp 0x00000001001bd848 function signature specialization <Arg[0] = Owned To Guaranteed> of ctapp.ClassListVC.viewDidLoad (ctapp.ClassListVC)() -> () (ClassListVC.swift:49)
13 ctapp 0x00000001001b9f24 @objc ctapp.ClassListVC.viewDidLoad (ctapp.ClassListVC)() -> () (ClassListVC.swift:0)
14 UIKit 0x0000000187338c80 -[UIViewController loadViewIfRequired] + 688
15 UIKit 0x0000000187338990 -[UIViewController view] + 28
16 UIKit 0x000000018746ee64 -[UITabBarController transitionFromViewController:toViewController:transition:shouldSetSelected:] + 448
17 UIKit 0x000000018746eb54 -[UITabBarController _setSelectedViewController:] + 356
18 UIKit 0x0000000187346b68 +[UIView(Animation) performWithoutAnimation:] + 84
19 UIKit 0x0000000187472d8c -[UITabBarController _selectDefaultViewControllerIfNecessaryWithAppearanceTransitions:] + 232
20 UIKit 0x0000000187471c94 -[UITabBarController viewWillAppear:] + 156
21 UIKit 0x000000018734ff70 -[UIViewController _setViewAppearState:isAnimating:] + 512
22 UIKit 0x00000001874db324 -[UINavigationController _startCustomTransition:] + 912
23 UIKit 0x00000001873edeec -[UINavigationController _startDeferredTransitionIfNeeded:] + 464
24 UIKit 0x00000001873edcb8 -[UINavigationController __viewWillLayoutSubviews] + 52
25 UIKit 0x00000001873edc38 -[UILayoutContainerView layoutSubviews] + 196
26 UIKit 0x000000018733575c -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 576
27 QuartzCore 0x0000000186c7de18 -[CALayer layoutSublayers] + 148
28 QuartzCore 0x0000000186c78880 CA::Layer::layout_if_needed(CA::Transaction*) + 316
29 QuartzCore 0x0000000186c78724 CA::Layer::layout_and_display_if_needed(CA::Transaction*) + 28
30 QuartzCore 0x0000000186c77eb8 CA::Context::commit_transaction(CA::Transaction*) + 272
31 QuartzCore 0x0000000186c77c38 CA::Transaction::commit() + 524
32 QuartzCore 0x0000000186c71360 CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*) + 76
33 CoreFoundation 0x00000001828b02a0 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 28
34 CoreFoundation 0x00000001828ad22c __CFRunLoopDoObservers + 356
35 CoreFoundation 0x00000001828ad60c __CFRunLoopRun + 832
36 CoreFoundation 0x00000001827d92d0 CFRunLoopRunSpecific + 392
37 GraphicsServices 0x000000018bfef6f8 GSEventRunModal + 164
38 UIKit 0x000000018739efa8 UIApplicationMain + 1484
39 ctapp 0x0000000100232c24 main (AppDelegate.swift:25)
40 libdyld.dylib 0x000000019479aa04 start + 0
