[Bug 29532] unable to add any file

[Martin Pitt]

Public bug reported:
https://launchpad.net/malone/bugs/29532

Affects: serpentine (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

Description:
I can't add any file (I tried mp3 and ogg) into serpentine, neither with
drag&drop nor with 'Add files'. I just get this exception:

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/serpentine/operations.py", line 241, in __start_next
    oper.start()
  File "/usr/lib/python2.4/site-packages/serpentine/mastering.py", line 159, in start
    l.on_finished (e)
  File "/usr/lib/python2.4/site-packages/serpentine/operations.py", line 269, in on_finished
    self.__start_next()
  File "/usr/lib/python2.4/site-packages/serpentine/operations.py", line 241, in __start_next
    oper.start()
  File "/usr/lib/python2.4/site-packages/serpentine/mastering.py", line 107, in start
    oper = audio.gvfsAudioMetadata (self.hints['location'])
  File "/usr/lib/python2.4/site-packages/serpentine/audio.py", line 225, in gvfsAudioMetadata
    filesrc.set_property ("location", uri)
AttributeError: 'NoneType' object has no attribute 'set_property'