Thanks Adam, trying to figure out what is happening there I looked at a dbus-monitor log and saw that:
"error sender=:1.444 -> dest=:1.438 error_name=org.freedesktop.DBus.Python.xdg.Exceptions.ParsingError reply_serial=158 string "Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/defer/__init__.py", line 489, in _inline_callbacks result = gen.send(result) File "/usr/lib/python2.7/dist-packages/sessioninstaller/core.py", line 1030, in _install_mime_types path)) File "/usr/lib/python2.7/dist-packages/xdg/DesktopEntry.py", line 33, in __init__ self.parse(filename) File "/usr/lib/python2.7/dist-packages/xdg/DesktopEntry.py", line 42, in parse IniFile.parse(self, file, ["Desktop Entry", "KDE Desktop Entry"]) File "/usr/lib/python2.7/dist-packages/xdg/IniFile.py", line 81, in parse raise ParsingError("Invalid line: " + line, filename) ParsingError: ParsingError in file '/usr/share/app-install/desktop/workrave:workrave.desktop', Invalid line: - RSI (Repetitive Strain Injury) oraz wspomaga rekonwalescencj\u0119" removing '/usr/share/app-install/desktop/workrave:workrave.desktop' fixes the issue I'm adding app-install-data-ubuntu (which ships the broken .desktop), workrave (where the original .desktop comes from) and sessioninstaller (which shouldn't probably stop working because one file has parsing errors) to the affected components ** Also affects: app-install-data-ubuntu (Ubuntu) Importance: Undecided Status: New ** Also affects: sessioninstaller (Ubuntu) Importance: Undecided Status: New ** Changed in: nautilus (Ubuntu) Status: New => Invalid ** Changed in: nautilus (Ubuntu) Importance: Undecided => Low ** Changed in: sessioninstaller (Ubuntu) Importance: Undecided => Low ** Changed in: sessioninstaller (Ubuntu) Status: New => Triaged ** Changed in: app-install-data-ubuntu (Ubuntu) Importance: Undecided => High ** Changed in: app-install-data-ubuntu (Ubuntu) Status: New => Triaged -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nautilus in Ubuntu. https://bugs.launchpad.net/bugs/1190097 Title: Nautilus tries but fails to auto-install applications needed to open files of a given type Status in “app-install-data-ubuntu” package in Ubuntu: Triaged Status in “nautilus” package in Ubuntu: Invalid Status in “sessioninstaller” package in Ubuntu: Triaged Bug description: I'm running Nautilus 3.6.3 on Ubuntu 13.10 (Saucy). When I double click a file in Nautilus and there is no application installed which can open the file, Nautilus will try to auto-install an application but the auto-install hangs. Specifically, for example: 1. Make sure that Gnumeric is not installed on your system. 2. Create a file with extension .gnumeric and double click it in Nautlius. Nautilus will report: Could not display "finance.gnumeric". There is no application installed for "Gnumeric spreadsheet" files. Do you want to search for an application to open this file? Click Yes. You'll now see a dialog that looks like this: Searching for suitable software to open files Files requires to install [sic] software to open files of the following file type: Gnumeric spreadsheet The dialog has a progress bar, which will briefly pulse and then stop. You can now only press Cancel. A glance at the code shows that Nautilus is trying to send a DBus message to PackageKit to perform the install. There are apparently some PackageKit components on my system (e.g. libpackagekit-glib2-14 is installed), but something is not working. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/app-install-data-ubuntu/+bug/1190097/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp