本篇文章由：http://xinpure.com/macos-sierra-git-gui-crash-solution/

问题描述

自从升级到 macOS Sierra 10.12 之后，git gui 就间歇性的出现闪退问题

一开始还好，只是偶尔闪退，最近真是越来越频繁了。。。

实在是受不了，今天就抽空找了一下解决方法

闪退报错如下：

2016-11-28 10:30:36.463 Wish[23615:1501726] *** Terminating app due to uncaught exception 'CALayerInvalidGeometry', reason: 'CALayer position contains NaN: [0 nan]'

*** First throw call stack:

(

        0   CoreFoundation                      0x00007fff7f0407bb __exceptionPreprocess + 171

        1   libobjc.A.dylib                     0x00007fff937ada2a objc_exception_throw + 48

        2   CoreFoundation                      0x00007fff7f0bda65 +[NSException raise:format:] + 197

        3   QuartzCore                          0x00007fff84c09980 _ZN2CA5Layer12set_positionERKNS_4Vec2IdEEb + 152

        4   QuartzCore                          0x00007fff84c09af5 -[CALayer setPosition:] + 44

        5   QuartzCore                          0x00007fff84c0a14b -[CALayer setFrame:] + 644

        6   CoreUI                              0x00007fff8a9b0112 _ZN20CUICoreThemeRenderer26MakeOrUpdateScrollBarLayerEPK13CUIDescriptoraPP7CALayer + 1284

        7   CoreUI                              0x00007fff8a9ac317 _ZN20CUICoreThemeRenderer19CreateOrUpdateLayerEPK13CUIDescriptorPP7CALayer + 1755

        8   CoreUI                              0x00007fff8a92e4d1 _ZN11CUIRenderer19CreateOrUpdateLayerEPK14__CFDictionaryPP7CALayer + 175

        9   CoreUI                              0x00007fff8a931185 CUICreateOrUpdateLayer + 221

        10  AppKit                              0x00007fff7d675623 -[NSCompositeAppearance _callCoreUIWithBlock:options:] + 226

        11  AppKit                              0x00007fff7cd22a9d -[NSAppearance _createOrUpdateLayer:options:] + 76

        12  AppKit                              0x00007fff7cf9b143 -[NSScrollerImp _animateToRolloverState] + 274

        13  AppKit                              0x00007fff7cf5ab79 __49-[NSScrollerImp _installDelayedRolloverAnimation]_block_invoke + 673

        14  AppKit                              0x00007fff7ce21331 -[NSScrollerImp _doWork:] + 15

        15  Foundation                          0x00007fff80a3ec88 __NSFireDelayedPerform + 417

        16  CoreFoundation                      0x00007fff7efc0f44 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20

        17  CoreFoundation                      0x00007fff7efc0bd3 __CFRunLoopDoTimer + 1075

        18  CoreFoundation                      0x00007fff7efc072a __CFRunLoopDoTimers + 298

        19  CoreFoundation                      0x00007fff7efb82f1 __CFRunLoopRun + 2081

        20  CoreFoundation                      0x00007fff7efb7874 CFRunLoopRunSpecific + 420

        21  HIToolbox                           0x00007fff7e557f6c RunCurrentEventLoopInMode + 240

        22  HIToolbox                           0x00007fff7e557ca9 ReceiveNextEventCommon + 184

        23  HIToolbox                           0x00007fff7e557bd6 _BlockUntilNextEventMatchingListInModeWithFilter + 71

        24  AppKit                              0x00007fff7cc4e5f5 _DPSNextEvent + 1093

        25  AppKit                              0x00007fff7d35e8eb -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1637

        26  Tk                                  0x00000001047cc285 TkGenerateButtonEvent + 494

        27  Tk                                  0x00000001047cc54d Tk_MacOSXSetupTkNotifier + 395

        28  Tcl                                 0x00000001048be5a8 Tcl_DoOneEvent + 237

        29  Tk                                  0x0000000104726f4f Tk_MainLoop + 33

        30  Tk                                  0x0000000104732a5b Tk_MainEx + 1566

        31  Wish                                0x000000010470d55a Wish + 9562

        32  libdyld.dylib                       0x00007fff94089255 start + 1

)

libc++abi.dylib: terminating with uncaught exception of type NSException

error: git-gui died of signal 6

解决方法

Google 到一个有效方法

brew install tcl-tk

brew link tcl-tk --force

ln -s $(which wish) "/usr/local/Cellar/git/$git_version/share/git-gui/lib/Git Gui.app/Contents/MacOS/Wish"

操作也不复杂，主要就是先安装一个新版本 Tcl/Tk

然后使用软链接，将新版本的 Tcl/TK 替换掉 git gui 包里的 旧版本 (最好还是备份一下)

以上就搞定了

参考链接

https://github.com/git/git-scm.com/issues/853#issuecomment-254768237