swiftのエラーについて

前提・実現したいこと

ここに質問の内容を詳しく書いてください。
シュミレーターを起動したところAppDelegate.swiftにて、Thread 1: signal SIGABRTなるエラーが発生しました。
原因、解決方法を教えてください。

発生している問題・エラーメッセージ

Thread 1: signal SIGABRT

該当のソースコード

swift
1import UIKit
2import IQKeyboardManagerSwift
3import Firebase
4
5@UIApplicationMain
6class AppDelegate: UIResponder, UIApplicationDelegate {
7
8    var window: UIWindow?
9    // 初期化
10    override init() {
11        super.init()
12        FirebaseApp.configure()
13    }
14
15    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
16        // Override point for customization after application launch.
17        IQKeyboardManager.shared.enable = true
18        return true
19    }
20
21    func applicationWillResignActive(_ application: UIApplication) {
22        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
23        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
24    }
25
26    func applicationDidEnterBackground(_ application: UIApplication) {
27        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
28        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
29    }
30
31    func applicationWillEnterForeground(_ application: UIApplication) {
32        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
33    }
34
35    func applicationDidBecomeActive(_ application: UIApplication) {
36        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
37    }
38
39    func applicationWillTerminate(_ application: UIApplication) {
40        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
41    }
42}
43
44
45
46
47
48

試したこと

storyboardの紐付き確認
imageが悪さをしていないか

補足情報（FW/ツールのバージョンなど）

BreakPointを置いたところは全て動きました。
動き終わった直後にエラーが出ました。

以下がビルドした時のメッセージになります。

2020-04-27 04:16:13.523576+0900 2020-04-27 2020-04-27 2020-04-27 2020-04-27 2020-04-27 2020-04-27 *** (
0 CoreFoundation 1 libobjc.A.dylib 2 CoreFoundation 3 Foundation 4 UIKitCore 5 UIKitCore 6 CoreFoundation 7 UIKitCore 8 UIKitCore 9 UIKitCore 10 UIKitCore 11 UIKitCore 12 UIKitCore 13 UIKitCore 14 UIKitCore 15 UIKitCore 16 UIKitCore 17 UIKitCore 18 UIKitCore 19 UIKitCore 20 UIKitCore 21 UIKitCore 22 UIKitCore 23 UIKitCore 24 UIKitCore 25 UIKitCore 26 UIKitCore 27 UIKitCore 28 UIKitCore 29 FrontBoardServices 30 FrontBoardServices 31 FrontBoardServices 32 libdispatch.dylib 33 libdispatch.dylib 34 FrontBoardServices 35 FrontBoardServices 36 FrontBoardServices 37 CoreFoundation 38 CoreFoundation 39 CoreFoundation 40 CoreFoundation 41 GraphicsServices 42 UIKitCore 43 SportsCasino 44 libdyld.dylib 45 ??? )
libc++abi.dylib: (lldb) SportsCasino[2472:28400] - <AppMeasurement>[I-ACS036002] Analytics screen reporting is enabled. Call +[FIRAnalytics setScreenName:setScreenClass:] to set the screen name or override the default screen class name. To disable screen reporting, set the flag FirebaseScreenReportingEnabled to NO (boolean) in the Info.plist
04:16:13.554718+0900 SportsCasino[2472:28340] libMobileGestalt MobileGestalt.c:890: MGIsDeviceOneOfType is not supported on this platform.
04:16:16.332250+0900 SportsCasino[2472:28495] 6.6.0 - [GoogleUtilities/AppDelegateSwizzler][I-SWZ001014] App Delegate does not conform to UIApplicationDelegate protocol.
04:16:16.337074+0900 SportsCasino[2472:28495] 6.6.0 - [Firebase/Analytics][I-ACS023007] Analytics v.60100000 started
04:16:16.340210+0900 SportsCasino[2472:28495] 6.6.0 - [Firebase/Analytics][I-ACS023008] To enable debug logging set the following application argument: -FIRAnalyticsDebugEnabled (see http://goo.gl/RfcP7r)
04:16:24.719038+0900 SportsCasino[2472:28340] [framework] CUIThemeStore: No theme registered with id=0
04:16:31.834605+0900 SportsCasino[2472:28340] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<SportsCasino.ViewController 0x7fc9b47127b0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key emailTextField.'
First throw call stack:
0x000000010f3bd6fb __exceptionPreprocess + 331
0x000000010e961ac5 objc_exception_throw + 48
0x000000010f3bd269 -[NSException raise] + 9
0x000000010c33f562 -[NSObject(NSKeyValueCoding) setValue:forKey:] + 289
0x00000001171722d2 -[UIViewController setValue:forKey:] + 87
0x00000001173ff8fd -[UIRuntimeOutletConnection connect] + 109
0x000000010f3a9d41 -[NSArray makeObjectsPerformSelector:] + 305
0x00000001173fc643 -[UINib instantiateWithOwner:options:] + 1810
0x00000001171793af -[UIViewController _loadViewFromNibNamed:bundle:] + 382
0x0000000117179d39 -[UIViewController loadView] + 177
0x000000011717a048 -[UIViewController loadViewIfRequired] + 172
0x000000011717a868 -[UIViewController view] + 27
0x00000001177b2c33 -[UIWindow addRootViewControllerViewIfPossible] + 122
0x00000001177b3327 -[UIWindow _setHidden:forced:] + 289
0x00000001177c5f86 -[UIWindow makeKeyAndVisible] + 42
0x0000000117775f1c -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 4555
0x000000011777b0c6 -[UIApplication _runWithMainScene:transitionContext:completion:] + 1617
0x0000000116fc06d6 __111-[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:]_block_invoke + 904
0x0000000116fc8fce +[_UICanvas _enqueuePostSettingUpdateTransactionBlock:] + 153
0x0000000116fc02ec -[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:] + 236
0x0000000116fc0c48 -[__UICanvasLifecycleMonitor_Compatability activateEventsOnly:withContext:completion:] + 1091
0x0000000116fbefba __82-[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:]_block_invoke + 782
0x0000000116fbec71 -[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:] + 433
0x0000000116fc39b6 __125-[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:]_block_invoke + 576
0x0000000116fc4610 _performActionsWithDelayForTransitionContext + 100
0x0000000116fc371d -[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:] + 223
0x0000000116fc86d0 -[_UICanvas scene:didUpdateWithDiff:transitionContext:completion:] + 392
0x00000001177799a8 -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 514
0x0000000117330dfa -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 361
0x000000011a5bb125 -[FBSSceneImpl _didCreateWithTransitionContext:completion:] + 448
0x000000011a5c4ed6 __56-[FBSWorkspace client:handleCreateScene:withCompletion:]_block_invoke_2 + 283
0x000000011a5c4700 __40-[FBSWorkspace _performDelegateCallOut:]_block_invoke + 53
0x0000000110415db5 _dispatch_client_callout + 8
0x00000001104192ba _dispatch_block_invoke_direct + 300
0x000000011a5f6146 FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK + 30
0x000000011a5f5dfe -[FBSSerialQueue _performNext] + 451
0x000000011a5f6393 -[FBSSerialQueue _performNextFromRunLoopSource] + 42
0x000000010f324be1 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 17
0x000000010f324463 __CFRunLoopDoSources0 + 243
0x000000010f31eb1f __CFRunLoopRun + 1231
0x000000010f31e302 CFRunLoopRunSpecific + 626
0x0000000114d6c2fe GSEventRunModal + 65
0x000000011777cba2 UIApplicationMain + 140
0x0000000109c1cf9b main + 75
0x000000011048a541 start + 1
0x0000000000000001 0x0 + 1
terminating with uncaught exception of type NSException

行動規範の内容に同意します

回答1件

Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<SportsCasino.ViewController 0x7fc9b47127b0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key emailTextField.'

なので emailTextField が　Storyboard に
ちゃんとひもづいているか確認してください。

下記サイト参考です。
https://qiita.com/Atsushi_/items/f7930dd00a2c2ea464cd

クラッシュしたらログエリアで　reason とワード検索するといいですよ。

投稿2020/04/26 22:27