ios - swift UINib 错误

Question

您好，我是 IOS Swift 开发的初学者，我只想知道是什么原因导致这些错误

由于未捕获的异常“NSInvalidArgumentException”而终止应用程序，原因:“似乎没有有效的已编译 Storyboard”

    'Could not load NIB in bundle: 'NSBundle </Users/dobermaxx/Library/Developer/CoreSimulator/Devices/B6F13A8A-3BDA-4868-97CD-79B62039F7A0/data/Containers/Bundle/Application/F4F3FC83-6133-4184-BD93-CDE0CA3AA688/AppName.app> (loaded)' with name 'aI6-Xc-0KW-view-rPV-ev-7sf' and directory 'Main.storyboardc''
    *** First throw call stack:
    (
0   CoreFoundation                      0x0000000106389d4b __exceptionPreprocess + 171
1   libobjc.A.dylib                     0x0000000104a8221e objc_exception_throw + 48
2   CoreFoundation                      0x00000001063f32b5 +[NSException raise:format:] + 197
3   UIKit                               0x0000000108360bd2 -[UINib instantiateWithOwner:options:] + 507
4   UIKit                               0x00000001080f49c5 -[UIViewController _loadViewFromNibNamed:bundle:] + 386
5   UIKit                               0x00000001080f52e7 -[UIViewController loadView] + 177
6   UIKit                               0x00000001080f561c -[UIViewController loadViewIfRequired] + 201
7   UIKit                               0x00000001080fc062 -[UIViewController __viewWillAppear:] + 118
8   UIKit                               0x00000001081271d3 -[UINavigationController _startCustomTransition:] + 1290
9   UIKit                               0x0000000108137e48 -[UINavigationController _startDeferredTransitionIfNeeded:] + 697
10  UIKit                               0x0000000108138fdb -[UINavigationController __viewWillLayoutSubviews] + 58
11  UIKit                               0x000000010832fdd7 -[UILayoutContainerView layoutSubviews] + 223
12  UIKit                               0x0000000108018ab8 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 1237
13  QuartzCore                          0x0000000107d3abf8 -[CALayer layoutSublayers] + 146
14  QuartzCore                          0x0000000107d2e440 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 366
15  QuartzCore                          0x0000000107d2e2be _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 24
16  QuartzCore                          0x0000000107cbc318 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 280
17  QuartzCore                          0x0000000107ce93ff _ZN2CA11Transaction6commitEv + 475
18  QuartzCore                          0x0000000107ce9d6f _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 113
19  CoreFoundation                      0x000000010632e267 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23
20  CoreFoundation                      0x000000010632e1d7 __CFRunLoopDoObservers + 391
21  CoreFoundation                      0x0000000106312f8e __CFRunLoopRun + 1198
22  CoreFoundation                      0x0000000106312884 CFRunLoopRunSpecific + 420
23  GraphicsServices                    0x000000010c3e4a6f GSEventRunModal + 161
24  UIKit                               0x0000000107f53c68 UIApplicationMain + 159
25  AppName                              0x0000000103c4b0ff main + 111
26  libdyld.dylib                       0x000000010a1a568d start + 1
    )
    libc++abi.dylib: terminating with uncaught exception of type NSException

这是触发错误的代码块

    let entryviewcontroller = self.storyboard?.instantiateViewController(withIdentifier: "vcEntry") as! EntryViewController
            entryviewcontroller.passDate = cell.sqldate
            self.navigationController?.pushViewController(entryviewcontroller, animated: true)

我检查了 viewcontroller 标识符，它正是“vcEntry”，现在我知道这会触发错误，因为它是 collectionview 单元格的一部分，它会在我第三次选择/点击后触发，然后我返回到带有 collection view 的 View 细胞

Answer 1

你检查过这段代码有异常断点吗？如果不是，那么请添加一个异常断点并检查是否是这段代码导致崩溃。

当您的 XIB 未正确连接到您的 UIViewController 时，通常会发生这种类型的崩溃。

同时在 EntryViewController 中的 viewDidLoad 事件上添加一个断点，并检查您的 EntryViewController 是否正确推送到 Navigationbar 或不请让我知道。