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[Bug 689997] Re: SC silently fails to start: softwarecenter.backend - ERROR - aptdaemon import failed

 

I'm having the same problem:
Traceback (most recent call last):
File "/usr/bin/software-center", line 111, in <module>
from softwarecenter.app import SoftwareCenterApp
File "/usr/share/software-center/softwarecenter/app.py", line 47, in <module>
from softwarecenter.backend.aptd import TransactionFinishedResult
File "/usr/share/software-center/softwarecenter/backend/__init__.py", line 19, in <module>
from aptd import AptdaemonBackend
File "/usr/share/software-center/softwarecenter/backend/aptd.py", line 30, in <module>
from aptdaemon import client
ImportError: No module named aptdaemon


software-center:
Installed: 4.0.4
Candidate: 4.0.4
Version table:
*** 4.0.4 0
500 http://za.archive.ubuntu.com/ubuntu/ natty-updates/main amd64 Packages
100 /var/lib/dpkg/status
4.0 0
500 http://za.archive.ubuntu.com/ubuntu/ natty/main amd64 Packages

aptdaemon:
Installed: 0.41+bzr646-0ubuntu2.1
Candidate: 0.41+bzr646-0ubuntu2.1
Version table:
*** 0.41+bzr646-0ubuntu2.1 0
500 http://za.archive.ubuntu.com/ubuntu/ natty-updates/main amd64 Packages
100 /var/lib/dpkg/status
0.41+bzr646-0ubuntu2 0
500 http://za.archive.ubuntu.com/ubuntu/ natty/main amd64 Packages




** Changed in: software-center (Ubuntu)
       Status: Expired => In Progress

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https://bugs.launchpad.net/bugs/689997

Title:
  SC silently fails to start: softwarecenter.backend - ERROR - aptdaemon
  import failed

Status in “software-center” package in Ubuntu:
  In Progress

Bug description:
  Binary package hint: software-center

  Freshly reinstalled natty, attempting to run Software Centre gives no
  result.  Trying again from the command-line produces:

    $ software-center
    2010-12-14 03:01:01,958 - softwarecenter.backend - ERROR - aptdaemon import failed
    Traceback (most recent call last):
      File "/usr/share/software-center/softwarecenter/backend/aptd.py", line 39, in <module>
        from aptdaemon.defer import inline_callbacks, return_value
    ImportError: No module named defer
    Need the latest aptdaemon, try "sudo apt-add-repository ppa:software-store-developers/ppa" to get the PPA

  seems likely that something is missing a hard or versioned dependency.

    aptdaemon = 0.40+bzr529-0ubuntu1
    software-center = 3.1.3

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