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)