Fatal Exception: NSInternalInconsistencyException
UITableView dataSource returned a nil cell for row at index path:  {length = 2, path = 0 - 0}. Table view: ; backgroundColor = ; layer = ; contentOffset: {0, -56}; contentSize: {430, 332.99999618530273}; adjustedContentInset: {56, 0, 0, 0}; dataSource: >, dataSource: 

Fatal Exception: NSInternalInconsistencyException
0  CoreFoundation                 0xed5e0 __exceptionPreprocess
1  libobjc.A.dylib                0x2bc00 objc_exception_throw
2  Foundation                     0x6bc398 _userInfoForFileAndLine
3  UIKitCore                      0x289d74 -[UITableView _createPreparedCellForGlobalRow:withIndexPath:willDisplay:]
4  UIKitCore                      0x289a70 -[UITableView _updateVisibleCellsForRanges:createIfNecessary:]
5  UIKitCore                      0x287fbc -[UITableView _updateVisibleCellsNow:]
6  UIKitCore                      0xfc45dc -[UITableView _updateAnimationDidStopWithOldVisibleViews:finished:context:]
7  UIKitCore                      0x850bc __UIVIEW_IS_EXECUTING_ANIMATION_COMPLETION_BLOCK__
8  UIKitCore                      0x84854 -[UIViewAnimationBlockDelegate _didEndBlockAnimation:finished:context:]
9  UIKitCore                      0x83ecc -[UIViewAnimationState sendDelegateAnimationDidStop:finished:]
10 UIKitCore                      0x66498 -[UIViewAnimationState animationDidStop:finished:]
11 QuartzCore                     0x7276c run_animation_callbacks(void*)
12 libdispatch.dylib              0x4300 _dispatch_client_callout
13 libdispatch.dylib              0x12998 _dispatch_main_queue_drain
14 libdispatch.dylib              0x125b0 _dispatch_main_queue_callback_4CF
15 CoreFoundation                 0x379bc __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
16 CoreFoundation                 0x346c8 __CFRunLoopRun
17 CoreFoundation                 0x33e18 CFRunLoopRunSpecific
18 GraphicsServices               0x35ec GSEventRunModal
19 UIKitCore                      0x22f2fc -[UIApplication _run]
20 UIKitCore                      0x22e938 UIApplicationMain
21 MyApp                          0x2032c main + 13 (main.swift:13)
22 ???                            0x1ce237d44 (Missing)