Bug: No such file or directory .git/index

[TachikakaMin]

Traceback (most recent call last):
File "GitHack.py", line 40, in
main()
File "GitHack.py", line 21, in main
init()
File "GitHack.py", line 35, in init
start()
File "GitHack/lib/controler.py", line 21, in start
if method_a() or method_b() or method_c():
File "GitHack/lib/controler.py", line 56, in method_c
clone_from_cache()
File "GitHack/lib/git.py", line 116, in clone_from_cache
cache_objects()
File "GitHack/lib/git.py", line 265, in cache_objects
for entry in parse_index(os.path.join(paths.GITHACK_DIST_TARGET_GIT_PATH, "index")):
File "GitHack/lib/git.py", line 291, in parse_index
with open(filename, "rb") as o:
IOError: [Errno 2] No such file or directory: "/.git/index"