Traceback (most recent call last):
  File "/usr/share/software-center/update-software-center-agent", line 78, in <module>
    os.makedirs(pathname)
  File "/usr/lib/python2.7/os.py", line 157, in makedirs
    mkdir(name, mode)
OSError: [Errno 17] File exists: '/tmp/guest-5v58U8/.cache/software-center/software-center-agent.db.tmp'