Software center silently removes installed packages if there are package conflicts

LoL, I was watching the ubunter vids and installed Gourmet and then Miro was gone. Probably, much the same for Matt

Hey it happened to me too!
I'm confirming this bug.

This is still an issue with s-c 2.0

Ubuntu 9.0 Karmic Koala

I'm affected as well.

Miro was a victim of Software Center and the Ubunter video viewed via itself. :-)

PS: For the bug related with the actual conflict see Bug #355866 and for my workaround comment #9

Happened to me the other way round, installing miro removed gourmet.
Back to apt-get for now

Aptdaemon provides a Simulate method which allows to calculate the dependencies of a transaction. This one should be used. See the gtk-demo or aptdcon for a code example.

software-center (2.1.17) maverick; urgency=low

  [ Gary Lasker ]
  * softwarecenter/view/purchasedialog.py:
    - make popup window a modal dialog so it works with
      metacity too (LP: #625398)
  * softwarecenter/view/softwarepane.py,
    softwarecenter/view/availablepane.py,
    softwarecenter/view/channelpane.py
    softwarecenter/view/installedpane.py,
    test/test_appview.py:
    - factor show/hide nonapps functionality up to the
      SoftwarePane base class, cleanup redundant code
    - enable show/hide nonapps in the "Provided by Ubuntu"
      subitem of "Installed Software" per updated spec
      (LP: #556375)
    - add test for show/hide nonapps
  * softwarecenter/backend/channel.py:
    - small fix in debug code

  [ Michael Vogt ]
  * merged lp:~mpt/software-center/basic-css, improves the
    style of the purchase dialog (thanks!)
  * merged lp:~mmcg069/software-center/small-fixes that fixes
    minor drawing error with the paging dot drawing outside its
    allocated area (thanks!)
  * merged lp:~mpt/software-center/help-3.0 (thanks!)
  * softwarecenter/gwibber_helper.py:
    - to find out if gwibber has accounts setup, poke around in
      gconf instead of doing a dbus call. The dbus call will trigger
      a gwibber start on each s-c start

  [ Kiwinote ]
  * softwarecenter/view/appdetailsview_gtk.py:
    - set action_bar.pkg_state as well as local state
      (LP: #629230, LP: #632889)
      this means that the button will always take the right action
      (testcase: click 'install', cancel auth, click 'install', auth)
    - don't show warning in pkgstatusbar while transaction is in progress,
      instead show 'installing..', 'updating..', etc
      (test case: install any deb file and watch the pkgstatusbar)
  * softwarecenter/view/catview.py:
    - sort categories alphabetically (LP: #633238)
  * softwarecenter/view/catview_gtk.py:
    - skip the carousel transition if we are hovering above a poster, or if
      the poster is selected (ie hold down mouse, but don't release)

  [ Mohamed Amine IL Idrissi ]
  * Fix bug that allowed silent removal of conflicting packages
    (LP: #554319)
  * Fix missing icons in the remove alerts

Date: Thu, 09 Sep 2010 09:11:23 +0200
Changed-By: Michael Vogt <michael.vogt at ubuntu.com>
Maintainer: Michael Vogt <mvo at ubuntu.com>
https://launchpad.net/ubuntu/maverick/+source/software-center/2.1.17