I have a similar one
bash-4.4$ gitk
2017-04-15 13:09:52.514 Wish[3344:197352] *** Terminating app due to uncaught exception 'CALayerInvalidGeometry', reason: 'CALayer position contains NaN: [nan 0]'
*** First throw call stack:
(
0 CoreFoundation 0x00007fffd119048b __exceptionPreprocess + 171
1 libobjc.A.dylib 0x00007fffe58f2cad objc_exception_throw + 48
2 CoreFoundation 0x00007fffd120e96d +[NSException raise:format:] + 205
3 QuartzCore 0x00007fffd6d35520 _ZN2CA5Layer12set_positionERKNS_4Vec2IdEEb + 152
4 QuartzCore 0x00007fffd6d35695 -[CALayer setPosition:] + 44
5 QuartzCore 0x00007fffd6d35ceb -[CALayer setFrame:] + 644
6 CoreUI 0x00007fffdcafd4ce _ZN20CUICoreThemeRenderer26MakeOrUpdateScrollBarLayerEPK13CUIDescriptoraPP7CALayer + 1284
7 CoreUI 0x00007fffdcaf94c3 _ZN20CUICoreThemeRenderer19CreateOrUpdateLayerEPK13CUIDescriptorPP7CALayer + 1595
8 CoreUI 0x00007fffdca7a58d _ZN11CUIRenderer19CreateOrUpdateLayerEPK14__CFDictionaryPP7CALayer + 175
9 CoreUI 0x00007fffdca7d241 CUICreateOrUpdateLayer + 221
10 AppKit 0x00007fffcf7bc21f -[NSCompositeAppearance _callCoreUIWithBlock:options:] + 226
11 AppKit 0x00007fffcee620b3 -[NSAppearance _createOrUpdateLayer:options:] + 76
12 AppKit 0x00007fffcf0da71f -[NSScrollerImp _animateToRolloverState] + 274
13 AppKit 0x00007fffcf09a0f9 __49-[NSScrollerImp _installDelayedRolloverAnimation]_block_invoke + 673
14 AppKit 0x00007fffcef602c5 -[NSScrollerImp _doWork:] + 15
15 Foundation 0x00007fffd2b6ec88 __NSFireDelayedPerform + 417
16 CoreFoundation 0x00007fffd110fd74 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
17 CoreFoundation 0x00007fffd110f9ff __CFRunLoopDoTimer + 1071
18 CoreFoundation 0x00007fffd110f55a __CFRunLoopDoTimers + 298
19 CoreFoundation 0x00007fffd1106f81 __CFRunLoopRun + 2065
20 CoreFoundation 0x00007fffd1106514 CFRunLoopRunSpecific + 420
21 Tcl 0x0000000106fe5b43 Tcl_WaitForEvent + 314
22 Tcl 0x0000000106fb55cd Tcl_DoOneEvent + 274
23 Tk 0x0000000106e1ef4f Tk_MainLoop + 33
24 Tk 0x0000000106e2aa5b Tk_MainEx + 1566
25 Wish 0x0000000106dfe55a Wish + 9562
26 libdyld.dylib 0x00007fffe61d1255 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
/usr/bin/wish: line 2: 3344 Abort trap: 6 "$(dirname $0)/../../System/Library/Frameworks/Tk.framework/Versions/8.5/Resources/Wish.app/Contents/MacOS/Wish" "$@"
bash-4.4$
I think it is new - I do not really care as long as is working mint on Linux.
Please pardon the 80th column limit exceed.
> Begin forwarded message:
>
> From: Evan Aad <oddeveneven2@xxxxxxxxx>
> Subject: Errors running gitk on OS X
> Date: 13 April 2017 at 19:03:45 GMT+2
> To: git@xxxxxxxxxxxxxxx
>
> Running gitk from the command line, while at the top level of a Git
> working directory, produces the following error message, and gitk
> fails to open:
>
>> objc[1031]: Objective-C garbage collection is no longer supported.
>
>> /usr/local/bin/wish: line 2: 1031 Abort trap: 6 "$(dirname $0)/../../../Library/Frameworks/Tk.framework/Versions/8.5/Resources/Wish.app/Contents/MacOS/Wish" "$@"
>
> Additionally, the following error message pops up in a window:
>
>> Wish quit unexpectedly.
>
>> Click Reopen to open the application again. Click Report to see more detailed information and send a report to Apple.
>
>> Ignore | Report... | Reopen
>
> How can this be fixed?
>
> ***
>
> OS: macOS Sierra, Version 10.12.4
> Git version: 2.11.0 (Apple Git-81)