Ios 已将无法识别的选择器发送到实例***

当我运行该项目时，它在“AppDelegate.swift”处崩溃

错误消息：

Optional(<UIButton: 0x7f9a0bd06610; frame = (0 0; 49 42); opaque = NO; autoresize = RM+BM; layer = <CALayer: 0x600001a316a0>>) 2019-04-07 11:10:54.335048+0800 IRIS iOS[60993:2979677] -[UIView setConstant:]: unrecognized selector sent to instance 0x7f9a0bd247f0 2019-04-07 11:10:54.351958+0800 IRIS iOS[60993:2979677] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIView setConstant:]: unrecognized selector sent to instance 0x7f9a0bd247f0' *** First throw call stack: ( 0 CoreFoundation 0x00000001044ce6fb __exceptionPreprocess + 331 1 libobjc.A.dylib 0x0000000103a72ac5 objc_exception_throw + 48 2 CoreFoundation 0x00000001044ecab4 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132 3 UIKitCore 0x000000010f950c3d -[UIResponder doesNotRecognizeSelector:] + 287 4 CoreFoundation 0x00000001044d3443 ___forwarding___ + 1443 5 CoreFoundation 0x00000001044d5238 _CF_forwarding_prep_0 + 120 6 IRIS iOS 0x000000010300cf1a $s8IRIS_iOS20SecondViewControllerC12isProcessingSbvW + 1418 7 IRIS iOS 0x000000010300d4c2 $s8IRIS_iOS20SecondViewControllerC12isProcessingSbvs + 274 8 IRIS iOS 0x000000010300d637 $s8IRIS_iOS20SecondViewControllerC11viewDidLoadyyF + 151 9 IRIS iOS 0x000000010300d844 $s8IRIS_iOS20SecondViewControllerC11viewDidLoadyyFTo + 36 10 UIKitCore 0x000000010f32243b -[UIViewController loadViewIfRequired] + 1183 11 UIKitCore 0x000000010f322868 -[UIViewController view] + 27 12 UIKitCore 0x000000010f95ac33 -[UIWindow addRootViewControllerViewIfPossible] + 122 13 UIKitCore 0x000000010f95b327 -[UIWindow _setHidden:forced:] + 289 14 UIKitCore 0x000000010f96df86 -[UIWindow makeKeyAndVisible] + 42 15 UIKitCore 0x000000010f91df1c -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 4555 16 UIKitCore 0x000000010f9230c6 -[UIApplication _runWithMainScene:transitionContext:completion:] + 1617 17 UIKitCore 0x000000010f1686d6 __111-[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:]_block_invoke + 904 18 UIKitCore 0x000000010f170fce +[_UICanvas _enqueuePostSettingUpdateTransactionBlock:] + 153 19 UIKitCore 0x000000010f1682ec -[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:] + 236 20 UIKitCore 0x000000010f168c48 -[__UICanvasLifecycleMonitor_Compatability activateEventsOnly:withContext:completion:] + 1091 21 UIKitCore 0x000000010f166fba __82-[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:]_block_invoke + 782 22 UIKitCore 0x000000010f166c71 -[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:] + 433 23 UIKitCore 0x000000010f16b9b6 __125-[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:]_block_invoke + 576 24 UIKitCore 0x000000010f16c610 _performActionsWithDelayForTransitionContext + 100 25 UIKitCore 0x000000010f16b71d -[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:] + 223 26 UIKitCore 0x000000010f1706d0 -[_UICanvas scene:didUpdateWithDiff:transitionContext:completion:] + 392 27 UIKitCore 0x000000010f9219a8 -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 514 28 UIKitCore 0x000000010f4d8dfa -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 361 29 FrontBoardServices 0x000000010d982125 -[FBSSceneImpl _didCreateWithTransitionContext:completion:] + 448 30 FrontBoardServices 0x000000010d98bed6 __56-[FBSWorkspace client:handleCreateScene:withCompletion:]_block_invoke_2 + 283 31 FrontBoardServices 0x000000010d98b700 __40-[FBSWorkspace _performDelegateCallOut:]_block_invoke + 53 32 libdispatch.dylib 0x0000000108294db5 _dispatch_client_callout + 8 33 libdispatch.dylib 0x00000001082982ba _dispatch_block_invoke_direct + 300 34 FrontBoardServices 0x000000010d9bd146 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 30 35 FrontBoardServices 0x000000010d9bcdfe -[FBSSerialQueue _performNext] + 451 36 FrontBoardServices 0x000000010d9bd393 -[FBSSerialQueue _performNextFromRunLoopSource] + 42 37 CoreFoundation 0x0000000104435be1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17 38 CoreFoundation 0x0000000104435463 __CFRunLoopDoSources0 + 243 39 CoreFoundation 0x000000010442fb1f __CFRunLoopRun + 1231 40 CoreFoundation 0x000000010442f302 CFRunLoopRunSpecific + 626 41 GraphicsServices 0x000000010b4bb2fe GSEventRunModal + 65 42 UIKitCore 0x000000010f924ba2 UIApplicationMain + 140 43 IRIS iOS 0x000000010303135b main + 75 44 libdyld.dylib 0x0000000108309541 start + 1 ) libc++abi.dylib: terminating with uncaught exception of type NSException 可选（） 2019-04-07 11:10:54.335048+0800 IRIS iOS[60993:2979677]-[UIView setConstant:]：发送到实例0x7f9a0bd247f0的选择器无法识别 2019-04-07 11:10:54.351958+0800 IRIS iOS[60993:2979677]***由于未捕获的异常“NSInvalidArgumentException”而终止应用程序，原因：'-[UIView setConstant:::]：未识别的选择器发送到实例0x7f9a0bd247f0' ***第一次抛出调用堆栈： ( 0 CoreFoundation 0x00000001044ce6fb__异常预处理+331 1 libobjc.A.dylib 0x0000000103a72ac5 objc_异常_抛出+48 2 CoreFoundation 0x00000001044ecab4-[NSObject（NSObject）不识别选择器：][132 3 UIKitCore 0x000000010f950c3d-[UIResponder不识别选择器：][287 4 CoreFoundation 0x00000001044d3443\uuuuuuuuuuuuuu+1443 5 CoreFoundation 0x00000001044d5238\u CF\u转发\u准备\u 0+120 6 IRIS iOS 0x000000010300cf1a$s8IRIS_IOS2SecondViewController 12isProcessingsBVW+1418 7 IRIS iOS 0x000000010300d4c2$s8IRIS_ios20Secondviewcontroller12isProcessingsBVS+274 8 IRIS iOS 0x000000010300d637$s8IRIS_ios20Secondviewcontroller11ViewDidLoadYYF+151 9 IRIS iOS 0x000000010300d844$s8IRIS_IOS20Secondviewcontroller11ViewDidLoadyyyFTO+36 10 UIKitCore 0x000000010f32243b-[UIViewController loadViewIfRequired]+1183 11 UIKitCore 0x000000010f322868-[UIViewController视图]+27 12 UIKitCore 0x000000010f95ac33-[UIWindow AddRootViewControllerServiceWifPossible]+122 13 UIKitCore 0x000000010f95b327-[UIWindow\u setHidden:强制：][289 14 UIKitCore 0x000000010f96df86-[UIWindow makeKeyAndVisible]+42 15 UIKitCore 0x000000010f91df1c-[UIApplication\u callInitializationDelegatesForMainScene:transitionContext:+4555 16 UIKitCore 0x000000010f9230c6-[UIApplication\u在主场景中运行：transitionContext:completion:+1617 17 UIKitCore 0x000000010f1686d6 \uuuu 111-[\uuuu UICanvasLifecycleMonitor \u兼容性\u scheduleFirstCommitForScene:transition:firstActivation:completion:]\u block\u invoke+904 18 UIKitCore 0x000000010f170fce+[\u UICanvas\u enqueuePostSettingUpdateTransactionBlock:+153 19 UIKitCore 0x000000010f1682ec-[\uu UICanvasLifecycleMonitor\u Compatibility\u scheduleFirstCommitForScene:transition:firstActivation:completion:+236 20 UIKitCore 0x000000010f168c48-[\uu UICanvasLifecycleMonitor\u Compatibility activateEventsOnly:withContext:completion:+1091 21 UIKitCore 0x000000010f166fba\uuuu82-[\uUIApplicationCanvas\uTransitionOnlyLifeCycleStateWithTransitionContext:completion:]\uBlock\uInvoke+782 22 UIKitCore 0x000000010f166c71-[\u UIApplicationCanvas\u TransitionOnlyLifeCycleState with TransitionContext:completion:][433 23 UIKitCore 0x000000010f16b9b6 \uuu 125-[\uUICanvasLifecycleSettingsDiffActionPerformancesforCases:withUpdatedScene:settingsDiff:fromSettings:transitionContext:][uBlock\uInvoke+576 24 UIKitCore 0x000000010f16c610 _performationswithdelayforTransitionContext+100 25 UIKitCore 0x000000010f16b71d-[\u UICanvas生命周期设置对NVAS:With Updated场景：设置Diff:From设置：transitionContext:+223的DiffAction性能 26 UIKitCore 0x000000010f1706d0-[\u UICanvas场景：didUpdateWithDiff:transitionContext:completion:+392 27 UIKitCore 0x000000010f9219a8-[UIApplication工作区：didCreateScene:withTransitionContext:completion:+514 28 UIKitCore 0x000000010f4d8dfa-[UIApplicationSceneClientAgent场景：未初始化事件：完成：][361 29 FrontBoardServices 0x000000010d982125-[FBSSceneImpl_didCreateWithTransitionContext:completion:+448 30 FrontBoardServices 0x000000010d98bed6 u 56-[FBSWorkspace客户端：HandleCreateSecene:withCompletion:][u block_invoke_2+283 31 FrontBoardServices 0x000000010d98b700 uu 40-[FBSWorkspace u performDeleteCallout:][u block_uinvoke+53 32 libdispatch.dylib 0x0000000108294db5“调度客户机”调用+8 33 libdispatch.dylib 0x00000001082982ba \u分派\u块\u调用\u直接+300 34 FrontBoardServices 0x000000010d9bd146 uu FBSSERIALQUEUE u正在调用u OUT u到u块u+30 35 FrontBoardServices 0x000000010d9bcdfe-[FBSSerialQueue\u performNext]+451 36 FrontBoardServices 0x000000010d9bd393-[FBSSerialQueue _performNextFromRunLoopSource]+42 37 CoreFoundation 0x0000000104435be1\uuuu CFRUNLOOP\u正在调用\u OUT\u以执行\u函数\uuu+17 38 CoreFoundation 0x0000000104435463\uu CFRunLoopDoSources0+243 39 CoreFoundation 0x000000010442fb1f__CFRunLoopRun+1231 40 CoreFoundation 0x000000010442f302 CFRunLoopRunSpecific+626 41图形服务0x000000010B4B2FE GSEventRunModal+65 42 UIKitCore 0x000000010f924ba2 UIApplicationMain+140 43虹膜iOS 0x000000010303135b主+75 44 libdyld.dylib 0x0000000108309541开始+1 ) libc++abi.dylib:以uncau终止