Traceback (most recent call last):
  File "/usr/bin/qtvcp", line 359, in <module>
    APP = QTVCP()
  File "/usr/bin/qtvcp", line 269, in __init__
    window.apply_styles()
  File "/usr/lib/python2.7/dist-packages/qtvcp/qt_makegui.py", line 164, in apply_styles
    if not os.path.isfile(fname):
  File "/usr/lib/python2.7/genericpath.py", line 37, in isfile
    st = os.stat(path)
TypeError: coercing to Unicode: need string or buffer, NoneType found