gitk will not start on Mac: unknown color name “lime”

I've installed git on a mac via brew install git. When I try to start gitk I get the following error:

Error in startup script: unknown color name "lime"
    (processing "-fore" option)
    invoked from within
"$ctext tag conf m2 -fore [lindex $mergecolors 2]"
    (procedure "makewindow" line 347)
    invoked from within
"makewindow"
    (file "/usr/local/bin/gitk" line 12434)

It appears that my Mac doesn't have a color named lime.

Can I add a lime color to the environment, or is there a better fix?

The git version is 2.7.0, and the Mac is running Yosemite 10.10.5

You can check your version of Tcl/Tk by running wish and using the command info patchlevel. It appears that git 2.7.0, Tcl/Tk 8.5.9, and OS X 10.11 El Capitan do not work well together.

I solved this problem by doing brew cask install tcl, which installed 8.6.4, and gitk works now.

I also found the same problem with exactly the same version of git and OSX. As a temporary workaround I suggest you to do the following:

cp /usr/local/bin/gitk /usr/local/bin/gitk.bkp
vi /usr/local/bin/gitk

and replace all occurences of lime to any color you want (I used #99FF00). Here is the vim command:

:%s/lime/"#99FF00"/g

EDIT: Please follow Keith B answer for permanent fix.

@Konrad Thanks for the help!! Although the answer is correct, please be aware that your command

:%s/lime/"#99FF00”/g

contains two different quotation marks, which will def. throw an error if copied & pasted.

So in order to go through with it, I had to do:

cp /usr/local/bin/gitk /usr/local/bin/gitk.bkp
vi /usr/local/bin/gitk

And inside vim:

:%s/lime/"#99FF00"/g

If you don't want to use Caskroom, follow this:

$ brew install tcl-tk
$ brew link tcl-tk --force

I was face same issue in ubuntu system. Then i flow below step to resolve issue.

open /usr/bin/gitk file in any text editor
search 'lime' keyword in file
replace 'lime' to 'green' with all in file
save file changes
try again gitk then it works

I am running MAC with Yosemetti and followed the below steps to resolve.

open /usr/local/git/bin/gitk file in any text editor

search 'lime' keyword in file

replace 'lime' to 'green' with all in file

save file changes

try again gitk then it works

Thanks @kaushal sharma, followed your answer, with a change in the gitk path.

Useful addition to the good answers suggesting replacing all occurrences of the word "lime" by the word "green" in the file /usr/bin/gitk or /usr/local/git/bin/gitk:

The replacement of occurrences of "lime" in the above "gitk" file is sometimes not enough.

You also need to do the same replacement process on the file ~/.config/git/gitk, or remove that file.

Follow the instructions above, but additionally do the following:

before running vi: chmod +w /usr/local/bin/gitk

after closing vi: chmod -w /usr/local/bin/gitk

Make sure, your path is set correctly when trying Keith B's solution. Running brew doctor showed, that I had /usr/bin before /usr/local/bin.

~ $ brew doctor
...
Consider setting your PATH so that /usr/local/bin
occurs before /usr/bin. Here is a one-liner:
  echo 'export PATH="/usr/local/bin:$PATH"' >> ~/.bash_profile

Thanks Konrad ,It work for me with below step

sudo brew update
sudo brew cask install tcl

来源：https://stackoverflow.com/questions/34637896/gitk-will-not-start-on-mac-unknown-color-name-lime

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