See the logifle 'C:\Program Files\TortoiseHg\hgproc.exe.log' for details

「view at revision」を実行すると100%失敗して、「See the logifle 'C:\Program Files\TortoiseHg\hgproc.exe.log' for details」というエラーが多発する。何故？

No username found, using 'papa33@hoge' instead
Traceback (most recent call last):
File "hggtk\status.pyc", line 1244, in _context_menu_act
File "hggtk\status.pyc", line 1057, in _log_file
File "hggtk\gdialog.pyc", line 256, in merge_opts
KeyError: 'git'
Exception in thread edit:はじめてのTortoiseHg.xls:
Traceback (most recent call last):
File "threading.pyc", line 460, in __bootstrap
File "threading.pyc", line 440, in run
File "hggtk\gdialog.pyc", line 460, in doedit
File "mercurial\util.pyc", line 703, in system
Abort: edit failed: Program exited with status 1
Exception in thread edit:テスト.txt:
Traceback (most recent call last):
File "threading.pyc", line 460, in __bootstrap
File "threading.pyc", line 440, in run
File "hggtk\gdialog.pyc", line 460, in doedit
File "mercurial\util.pyc", line 703, in system
Abort: edit failed: Program exited with status 1