libC++ abi.dylib: mit abgefangene Ausnahme vom Typ NSException (Fehler in der Sammlung Ansicht) Beenden

Question

2017-07-21 10:34:14.447487+0530 demo[2783:104307] [LayoutConstraints] Unable to simultaneously satisfy constraints. 
Probably at least one of the constraints in the following list is one you don't want. 
Try this: 
    (1) look at each constraint and try to figure out which you don't expect; 
    (2) find the code that added the unwanted constraint or constraints and fix it. 
(
"<NSLayoutConstraint:0x60000009a6d0 UICollectionView:0x7fbc1b825800.width == 343 (active)>", 
"<NSLayoutConstraint:0x61000009b670 H:|-(16)-[UICollectionView:0x7fbc1b825800] (active, names: '|':UIView:0x7fbc1a50d210)>", 
"<NSLayoutConstraint:0x61000009a680 H:[UICollectionView:0x7fbc1b825800]-(16)-| (active, names: '|':UIView:0x7fbc1a50d210)>", 
"<NSLayoutConstraint:0x60800009a6d0 'UIView-Encapsulated-Layout-Width' UIView:0x7fbc1a50d210.width == 320 (active)>" 
) 

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x60000009a6d0 UICollectionView:0x7fbc1b825800.width == 343 (active)> 

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger. 
The methods in the UIConstraintBasedLayoutDebugging category on UIView 
listed in <UIKit/UIView.h> may also be helpful. 
2017-07-21 10:34:14.453212+0530 demo[2783:104307] [LayoutConstraints] Unable to simultaneously satisfy constraints. 
Probably at least one of the constraints in the following list is one you don't want. 
Try this: 
    (1) look at each constraint and try to figure out which you don't expect; 
    (2) find the code that added the unwanted constraint or constraints and fix it. 
(
"<_UILayoutSupportConstraint:0x61000009bd00 _UILayoutGuide:0x7fbc1a40ae80.height == 20 (active)>", 
"<_UILayoutSupportConstraint:0x6100000986f0 V:|-(0)-[_UILayoutGuide:0x7fbc1a40ae80] (active, names: '|':UIView:0x7fbc1a50d210)>", 
"<_UILayoutSupportConstraint:0x61000009bda0 _UILayoutGuide:0x7fbc1a40b580.height == 0 (active)>", 
"<_UILayoutSupportConstraint:0x61000009bd50 _UILayoutGuide:0x7fbc1a40b580.bottom == UIView:0x7fbc1a50d210.bottom (active)>", 
"<NSLayoutConstraint:0x608000099a00 UIButton:0x7fbc1a40a5e0'Submit'.height == 30 (active)>", 
"<NSLayoutConstraint:0x60000009a950 UICollectionView:0x7fbc1b825800.height == 589 (active)>", 
"<NSLayoutConstraint:0x61000009b490 V:[UIButton:0x7fbc1a40a5e0'Submit']-(8)-[UICollectionView:0x7fbc1b825800] (active)>", 
"<NSLayoutConstraint:0x61000009b710 V:[_UILayoutGuide:0x7fbc1a40ae80]-(0)-[UIButton:0x7fbc1a40a5e0'Submit'] (active)>", 
"<NSLayoutConstraint:0x61000009b760 V:[UICollectionView:0x7fbc1b825800]-(20)-[_UILayoutGuide:0x7fbc1a40b580] (active)>", 
"<NSLayoutConstraint:0x60800009af40 'UIView-Encapsulated-Layout-Height' UIView:0x7fbc1a50d210.height == 568 (active)>" 
) 

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x60000009a950 UICollectionView:0x7fbc1b825800.height == 589 (active)> 

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger. 
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful. 
2017-07-21 10:34:14.457 demo[2783:104307] *** Assertion failure in -[UICollectionView _dequeueReusableViewOfKind:withIdentifier:forIndexPath:viewCategory:], /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit_Sim/UIKit-3600.7.47/UICollectionView.m:5115 
2017-07-21 10:34:14.499 demo[2783:104307] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'could not dequeue a view of kind: UICollectionElementKindCell with identifier cell - must register a nib or a class for the identifier or connect a prototype cell in a storyboard' 
*** First throw call stack: 
(
0 CoreFoundation      0x000000010a16eb0b __exceptionPreprocess + 171 
1 libobjc.A.dylib      0x0000000107414141 objc_exception_throw + 48 
2 CoreFoundation      0x000000010a172cf2 +[NSException raise:format:arguments:] + 98 
3 Foundation       0x0000000106fae536 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 193 
4 UIKit        0x000000010822cea3 -[UICollectionView _dequeueReusableViewOfKind:withIdentifier:forIndexPath:viewCategory:] + 1991 
5 UIKit        0x000000010822d2fb -[UICollectionView dequeueReusableCellWithReuseIdentifier:forIndexPath:] + 169 
6 demo        0x0000000106e2e7d6 _TFC4demo20SecondViewController14collectionViewfTCSo16UICollectionView13cellForItemAtV10Foundation9IndexPath_CSo20UICollectionViewCell + 150 
7 demo        0x0000000106e2eaf7 _TToFC4demo20SecondViewController14collectionViewfTCSo16UICollectionView13cellForItemAtV10Foundation9IndexPath_CSo20UICollectionViewCell + 87 
8 UIKit        0x0000000108218925 -[UICollectionView _createPreparedCellForItemAtIndexPath:withLayoutAttributes:applyAttributes:isFocused:notify:] + 446 
9 UIKit        0x0000000108218761 -[UICollectionView _createPreparedCellForItemAtIndexPath:withLayoutAttributes:applyAttributes:] + 35 
10 UIKit        0x000000010821d9bd -[UICollectionView _updateVisibleCellsNow:] + 4764 
11 UIKit        0x000000010822338e -[UICollectionView layoutSubviews] + 313 
12 UIKit        0x00000001079a955b -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 1268 
13 QuartzCore       0x000000010cf38904 -[CALayer layoutSublayers] + 146 
14 QuartzCore       0x000000010cf2c526 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 370 
15 QuartzCore       0x000000010cf2c3a0 _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 24 
16 QuartzCore       0x000000010cebbe92 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 294 
17 QuartzCore       0x000000010cee8130 _ZN2CA11Transaction6commitEv + 468 
18 QuartzCore       0x000000010cee8b37 _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 115 
19 CoreFoundation      0x000000010a114717 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23 
20 CoreFoundation      0x000000010a114687 __CFRunLoopDoObservers + 391 
21 CoreFoundation      0x000000010a0f9038 CFRunLoopRunSpecific + 440 
22 UIKit        0x00000001078e008f -[UIApplication _run] + 468 
23 UIKit        0x00000001078e6134 UIApplicationMain + 159 
24 demo        0x0000000106e319a7 main + 55 
25 libdyld.dylib      0x000000010b10e65d start + 1 
) 

ich eine App in swift bin Programmierung und wenn ich ausführen, um den Test-App auf dem iPhone Simulator alles funktioniert, aber es stürzt ab und zeigt diesen Fehlerbericht im Konsolenprotokoll an. Eine andere Sache ist, dass ich gerade zwei View-Controller in meiner App erstellt habe und ich die Collection-Ansicht darin entworfen habe. In der ersten Ansicht Controller-Steuerelement, aber in der zweiten Ansicht Controller meine Sammlung Ansicht funktioniert nicht.

Answer 1

‚NSInternalInconsistencyException‘, Grund: -

: ‚UICollectionElementKindCell mit der Kennung Zelle muss eine Spitze oder eine Klasse für die Kennung registrieren oder einen Prototyp Zelle in einem Storyboard verbinden kann keinen Blick von Art dequeue‘

Diese Nachricht sagt uns, dass der Absturz auftritt, wo Sie dequeueReusableViewOfKind aufrufen, weil Sie nicht zuerst eine Ansicht als Abschnitt Kopf- oder Fußzeile registriert haben. Sie müssen sicherstellen, dass, wenn Sie Setup der Sammlung Ansicht, die Sie auch Kopfzeile/Fußzeile (entweder mit xib oder einer Klasse) in die Sammlung Ansicht registrieren

Für den Kopf:

mit Klasse

collectionView.registerClass(YourHeaderClass.self, forSupplementaryViewOfKind: UICollectionElementKindSectionHeader, withReuseIdentifier: "yourReuseIdentifier") 

mit xib

var headerXib = UINib(nibName: "YourHeaderXib", bundle: nil) 
collectionView.registerNib(headerXib, forSupplementaryViewOfKind: UICollectionElementKindSectionHeader, withReuseIdentifier: yourReuseIdentifier) 

Für Fußzeile:

mit Klasse

collectionView.registerClass(SupplementaryViewClass.self, forSupplementaryViewOfKind: UICollectionElementKindSectionFooter, withReuseIdentifier: yourReuseIdentifier) 

mit xib

var footerXib = UINib(nibName: "YourFooterXib", bundle: nil) 
collectionView.registerNib(footerXib, forSupplementaryViewOfKind: UICollectionElementKindSectionFooter, withReuseIdentifier: yourReuseIdentifier)