Error in mac osx

[Scuottolinx]

i have this problem when i try to execute git meld

system(meld /var/folders/14/rwnx1k556dl95dht32psd3lh0000gn/T/git-meld.XXXXXX.rLZAVVgb/staging_area /var/folders/14/rwnx1k556dl95dht32psd3lh0000gn/T/git-meld.XXXXXX.rLZAVVgb/working_dir ) failed!

[pavloshyba]

on hight sierra could not run it.

git meld HEAD~

system(meld /var/folders/b6/t7gh_jls24501gcf3gpb0mdm0000gp/T/git-meld.XXXXXX.fzyFo0IX/HEAD~ /var/folders/b6/t7gh_jls24501gcf3gpb0mdm0000gp/T/git-meld.XXXXXX.fzyFo0IX/working_dir) failed! at /Users/administrator/git-meld.pl line 33.