Chapter 3: Higher order function Blur crashes about functional-swift HOT 2 CLOSED

2014-12-07 16:13:34.976 Postcard[3638:61667] +[NSObject customAttributes]: unrecognized selector sent to class 0x10eaced28
2014-12-07 16:13:34.980 Postcard[3638:61667] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[NSObject customAttributes]: unrecognized selector sent to class 0x10eaced28'
*** First throw call stack:
(
    0   CoreFoundation                      0x000000010c8d5f35 __exceptionPreprocess + 165
    1   libobjc.A.dylib                     0x000000010e8d9bb7 objc_exception_throw + 45
    2   CoreFoundation                      0x000000010c8dcf4d +[NSObject(NSObject) doesNotRecognizeSelector:] + 205
    3   CoreFoundation                      0x000000010c83527c ___forwarding___ + 988
    4   CoreFoundation                      0x000000010c834e18 _CF_forwarding_prep_0 + 120
    5   CoreImage                           0x000000010cf19af5 -[CIFilterClassDescription initWithClass:] + 182
    6   CoreImage                           0x000000010cf199e4 +[CIFilterClassDescription classDescriptionForClass:] + 147
    7   CoreImage                           0x000000010cf19ea0 -[CIFilterClassDescription initWithClass:] + 1121
    8   CoreImage                           0x000000010cf199e4 +[CIFilterClassDescription classDescriptionForClass:] + 147
    9   CoreImage                           0x000000010cf16959 -[CIFilter inputKeys] + 22
    10  CoreImage                           0x000000010cf16848 -[CIFilter dealloc] + 84
    11  libobjc.A.dylib                     0x000000010e8ee28e _ZN11objc_object17sidetable_releaseEb + 236
    12  Postcard                            0x000000010c6dea0f _TFE8PostcardCSo8CIFiltercfMS0_FT4nameSS10parametersGVSs10DictionarySSPSs9AnyObject___S0_ + 1375
    13  Postcard                            0x000000010c6df167 _TToFE8PostcardCSo8CIFiltercfMS0_FT4nameSS10parametersGVSs10DictionarySSPSs9AnyObject___S0_ + 135
    14  Postcard                            0x000000010c6e337c _TTDFE8PostcardCSo8CIFiltercfMS0_FT4nameSS10parametersGVSs10DictionarySSPSs9AnyObject___S0_ + 124
    15  Postcard                            0x000000010c6de4a1 _TFE8PostcardCSo8CIFilterCfMS0_FT4nameSS10parametersGVSs10DictionarySSPSs9AnyObject___S0_ + 129
    16  Postcard                            0x000000010c6e3ce1 _TFF8Postcard4blurFSdFCSo7CIImageS0_U_FS0_S0_ + 1137
    17  Postcard                            0x000000010c6e0f74 _TFC8Postcard18MainViewController11viewDidLoadfS0_FT_T_ + 5716
    18  Postcard                            0x000000010c6e2832 _TToFC8Postcard18MainViewController11viewDidLoadfS0_FT_T_ + 34
    19  UIKit                               0x000000010d746a90 -[UIViewController loadViewIfRequired] + 738
    20  UIKit                               0x000000010d77506b -[UINavigationController _layoutViewController:] + 44
    21  UIKit                               0x000000010d7755b5 -[UINavigationController _updateScrollViewFromViewController:toViewController:] + 216
    22  UIKit                               0x000000010d7756b4 -[UINavigationController _startTransition:fromViewController:toViewController:] + 92
    23  UIKit                               0x000000010d776487 -[UINavigationController _startDeferredTransitionIfNeeded:] + 523
    24  UIKit                               0x000000010d776f47 -[UINavigationController __viewWillLayoutSubviews] + 43
    25  UIKit                               0x000000010d8bc509 -[UILayoutContainerView layoutSubviews] + 202
    26  UIKit                               0x000000010d69a973 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 521
    27  QuartzCore                          0x00000001134b6de8 -[CALayer layoutSublayers] + 150
    28  QuartzCore                          0x00000001134aba0e _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 380
    29  QuartzCore                          0x00000001134ab87e _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 24
    30  QuartzCore                          0x000000011341963e _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 242
    31  QuartzCore                          0x000000011341a74a _ZN2CA11Transaction6commitEv + 390
    32  UIKit                               0x000000010d61f54d -[UIApplication _reportMainSceneUpdateFinished:] + 44
    33  UIKit                               0x000000010d620238 -[UIApplication _runWithMainScene:transitionContext:completion:] + 2642
    34  UIKit                               0x000000010d61ebf2 -[UIApplication workspaceDidEndTransaction:] + 179
    35  FrontBoardServices                  0x0000000113b442a3 __31-[FBSSerialQueue performAsync:]_block_invoke + 16
    36  CoreFoundation                      0x000000010c80b53c __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12
    37  CoreFoundation                      0x000000010c801285 __CFRunLoopDoBlocks + 341
    38  CoreFoundation                      0x000000010c801045 __CFRunLoopRun + 2389
    39  CoreFoundation                      0x000000010c800486 CFRunLoopRunSpecific + 470
    40  UIKit                               0x000000010d61e669 -[UIApplication _run] + 413
    41  UIKit                               0x000000010d621420 UIApplicationMain + 1282
    42  Postcard                            0x000000010c6ec57e top_level_code + 78
    43  Postcard                            0x000000010c6ec5ba main + 42
    44  libdyld.dylib                       0x000000010f0b3145 start + 1
    45  ???                                 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException