ubuntu14.04.1 安装深度影音不能播放视频

终端下输入deepin-media-player ~/视频/窃听风云31280国语中字.rmvb
出现提示：
(gedit:4565): Gtk-WARNING **: Calling Inhibit failed: GDBus.Errorrg.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files
qcc@qcc-ThinkPad-X230:~$ deepin-media-player ~/视频/窃听风云31280国语中字.rmvb

Traceback (most recent call last):
  File "/usr/share/deepin-media-player/src/media_player.py", line 1010, in timeout_add_paths
    self.scan_file_event(None, path)
  File "/usr/share/deepin-media-player/src/media_player.py", line 1122, in scan_file_event
    cmd_str = self.get_length(file_name)
  File "/usr/share/deepin-media-player/src/media_player.py", line 1077, in get_length
    info = parse_media_info.parse_info(file_path)
  File "/usr/share/deepin-media-player/src/parse_media_info.py", line 80, in parse_info
    output = subprocess.Popen(args, stdout=subprocess.PIPE).stdout
  File "/usr/lib/python2.7/subprocess.py", line 710, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1327, in _execute_child
    raise child_exception
OSError: [Errno 2] 没有那个文件或目录
ERROR:dbus.service:Unable to append (None,) to message with signature v: : Don't know which D-Bus type to use to encode type "NoneType"
ERROR:dbus.service:Unable to append (None,) to message with signature a{sv}: : 'NoneType' object is not iterable
ERROR:dbus.service:Unable to append (None,) to message with signature v: : Don't know which D-Bus type to use to encode type "NoneType"
ERROR:dbus.service:Unable to append (None,) to message with signature v: : Don't know which D-Bus type to use to encode type "NoneType"
^CTraceback (most recent call last):
  File "/usr/bin/deepin-media-player", line 40, in
    gtk.main()
KeyboardInterrupt
qcc@qcc-ThinkPad-X230:~$ deepin-media-player ~/视频/窃听风云31280国语中字.rmvb

Traceback (most recent call last):
  File "/usr/share/deepin-media-player/src/media_player.py", line 1010, in timeout_add_paths
    self.scan_file_event(None, path)
  File "/usr/share/deepin-media-player/src/media_player.py", line 1122, in scan_file_event
    cmd_str = self.get_length(file_name)
  File "/usr/share/deepin-media-player/src/media_player.py", line 1077, in get_length
    info = parse_media_info.parse_info(file_path)
  File "/usr/share/deepin-media-player/src/parse_media_info.py", line 80, in parse_info
    output = subprocess.Popen(args, stdout=subprocess.PIPE).stdout
  File "/usr/lib/python2.7/subprocess.py", line 710, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1327, in _execute_child
    raise child_exception
OSError: [Errno 2] 没有那个文件或目录
ERROR:dbus.service:Unable to append (None,) to message with signature v: : Don't know which D-Bus type to use to encode type "NoneType"
ERROR:dbus.service:Unable to append (None,) to message with signature a{sv}: : 'NoneType' object is not iterable
ERROR:dbus.service:Unable to append (None,) to message with signature v: : Don't know which D-Bus type to use to encode type "NoneType"
/usr/lib/python2.7/dist-packages/dtk/ui/utils.py:628: Warning: Source ID 124 was not found when attempting to remove it
  gobject.source_remove(callback_id)
ERROR:dbus.service:Unable to append (None,) to message with signature v: : Don't know which D-Bus type to use to encode type "NoneType"




不能播放视频
有人能帮忙分析一下原因吗？