Epidermis crashes on startup

[Crowler]

Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/epidermis/epidermis.py", line 39, <module>()
                               # but it throws off pychecker
    import const
    from const import DEBUG, MY_CACHE_HOME, MY_DATA_HOME, PIGMENT_TYPES
  variables: {'const': (None, None)}
  File "/usr/share/pyshared/epidermis/const.py", line 55, <module>()
    # is grub2 installed, if yes, don't use themes
    __ff = open("/boot/grub/installed-version","r")
    __line = __ff.readlines()[0].strip()
  variables: {'__ff': (None, None), 'open': ('builtin', <built-in function open>)}
IOError: [Errno 2] No existe el fichero ó directorio: '/boot/grub/installed-version'

debuginfo.debuginfo error, traceback:

Traceback (most recent call last):
  File "/usr/share/pyshared/epidermis/gtkexcepthook.py", line 176, in _info
    import debuginfo
  File "/usr/share/pyshared/epidermis/debuginfo.py", line 6, in <module>
    import const
  File "/usr/share/pyshared/epidermis/const.py", line 55, in <module>
    __ff = open("/boot/grub/installed-version","r")
IOError: [Errno 2] No existe el fichero ó directorio: '/boot/grub/installed-version'

--End of debuginfo traceback.