Software & Updates crashes and will not open

Question

I am unable to open the Software & Updates configuration window in System Settings. The best I have been able to do to understand what is going on is the following output after opening System Settings from terminal and clicking Software & Updates:

$ sudo unity-control-center 
/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py:40: PyGIWarning: Gdk was imported without specifying a version first. Use gi.require_version('Gdk', '3.0') before import to ensure that the right version gets loaded.
  from gi.repository import GObject, Gdk, Gtk, Gio, GLib
/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py:40: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
  from gi.repository import GObject, Gdk, Gtk, Gio, GLib
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 175, in activate_name_owner
    return self.get_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 361, in get_name_owner
    's', (bus_name,), **keywords)
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NameHasNoOwner: Could not get owner of name 'com.ubuntu.SoftwareProperties': no such name
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/bin/software-properties-gtk", line 101, in <module>
    app = SoftwarePropertiesGtk(datadir=options.data_dir, options=options, file=file)
  File "/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 141, in init
    proxy = bus.get_object("com.ubuntu.SoftwareProperties", "/")
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 241, in get_object
    follow_name_owner_changes=follow_name_owner_changes)
  File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 248, in init
    self._named_service = conn.activate_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 180, in activate_name_owner
    self.start_service_by_name(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 278, in start_service_by_name
    'su', (bus_name, flags)))
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ExecFailed: Failed to execute program com.ubuntu.SoftwareProperties: Permission denied

The same error occurs when executing software-properties-gtk (because AFAIK, it is one and the same).

Software Updater has been having some similar issues, and often crashes with this error:

$ sudo update-manager 
/usr/bin/update-manager:28: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gtk
/usr/lib/python3/dist-packages/UpdateManager/UnitySupport.py:29: PyGIWarning: Dbusmenu was imported without specifying a version first. Use gi.require_version('Dbusmenu', '0.4') before import to ensure that the right version gets loaded.
  from gi.repository import Dbusmenu, Unity
/usr/lib/python3/dist-packages/UpdateManager/UnitySupport.py:29: PyGIWarning: Unity was imported without specifying a version first. Use gi.require_version('Unity', '7.0') before import to ensure that the right version gets loaded.
  from gi.repository import Dbusmenu, Unity
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 175, in activate_name_owner
    return self.get_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 361, in get_name_owner
    's', (bus_name,), **keywords)
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NameHasNoOwner: Could not get owner of name 'org.debian.apt': no such name
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/defer/init.py", line 487, in _inline_callbacks
    result = gen.send(result)
  File "/usr/lib/python3/dist-packages/aptdaemon/client.py", line 1613, in _run_transaction_helper
    daemon = get_aptdaemon(self.bus)
  File "/usr/lib/python3/dist-packages/aptdaemon/client.py", line 1701, in get_aptdaemon
    False),
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 241, in get_object
    follow_name_owner_changes=follow_name_owner_changes)
  File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 248, in init
    self._named_service = conn.activate_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 180, in activate_name_owner
    self.start_service_by_name(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 278, in start_service_by_name
    'su', (bus_name, flags)))
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ExecFailed: Failed to execute program org.debian.apt: Permission denied
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 175, in activate_name_owner
    return self.get_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 361, in get_name_owner
    's', (bus_name,), **keywords)
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NameHasNoOwner: Could not get owner of name 'org.debian.apt': no such name
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/defer/init.py", line 487, in _inline_callbacks
    result = gen.send(result)
  File "/usr/lib/python3/dist-packages/aptdaemon/client.py", line 1613, in _run_transaction_helper
    daemon = get_aptdaemon(self.bus)
  File "/usr/lib/python3/dist-packages/aptdaemon/client.py", line 1701, in get_aptdaemon
    False),
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 241, in get_object
    follow_name_owner_changes=follow_name_owner_changes)
  File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 248, in init
    self._named_service = conn.activate_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 180, in activate_name_owner
    self.start_service_by_name(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 278, in start_service_by_name
    'su', (bus_name, flags)))
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ExecFailed: Failed to execute program org.debian.apt: Permission denied
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 175, in activate_name_owner
    return self.get_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 361, in get_name_owner
    's', (bus_name,), **keywords)
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NameHasNoOwner: Could not get owner of name 'org.debian.apt': no such name
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/aptdaemon/client.py", line 1584, in on_error
    error.raise_exception()
  File "/usr/lib/python3/dist-packages/defer/init.py", line 130, in raise_exception
    raise self.value.with_traceback(self.traceback)
  File "/usr/lib/python3/dist-packages/defer/init.py", line 487, in _inline_callbacks
    result = gen.send(result)
  File "/usr/lib/python3/dist-packages/aptdaemon/client.py", line 1613, in _run_transaction_helper
    daemon = get_aptdaemon(self.bus)
  File "/usr/lib/python3/dist-packages/aptdaemon/client.py", line 1701, in get_aptdaemon
    False),
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 241, in get_object
    follow_name_owner_changes=follow_name_owner_changes)
  File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 248, in init
    self._named_service = conn.activate_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 180, in activate_name_owner
    self.start_service_by_name(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 278, in start_service_by_name
    'su', (bus_name, flags)))
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ExecFailed: Failed to execute program org.debian.apt: Permission denied
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 175, in activate_name_owner
    return self.get_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 361, in get_name_owner
    's', (bus_name,), **keywords)
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NameHasNoOwner: Could not get owner of name 'org.debian.apt': no such name
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/defer/init.py", line 483, in _inline_callbacks
    result = gen.throw(excep)
  File "/usr/lib/python3/dist-packages/UpdateManager/backend/InstallBackendAptdaemon.py", line 65, in update
    trans = yield self.client.update_cache(defer=True)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ExecFailed: Failed to execute program org.debian.apt: Permission denied

Overall, it seems like Python and GTK are vomiting all over the place, but I don't know how to fix it.

There have been various other related issues such as being unable to install packages from the Software Center, or a variety of crashes from trying to update on startup.

I have already tried reinstalling software center with no luck, and am afraid to attempt this solution as the people in the comments say it's a bad idea. I have come here after finding a lack of answers everywhere else.

Edit:

Interestingly, I've encountered another error that is very similar in nvidia-settings. Error output is shown below when trying to save xorg.conf settings.

$ sudo nvidia-settings ** Message: PRIME: No offloading required. Abort
** Message: PRIME: is it supported? no
Package xorg-server was not found in the pkg-config search path.
Perhaps you should add the directory containing `xorg-server.pc'
to the PKG_CONFIG_PATH environment variable
No package 'xorg-server' found
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 175, in activate_name_owner
    return self.get_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 361, in get_name_owner
    's', (bus_name,), **keywords)
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NameHasNoOwner: Could not get owner of name 'com.ubuntu.ScreenResolution.Mechanism': no such name
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/share/screen-resolution-extra/nvidia-polkit.py", line 75, in <module>
    operation_status = main(options)
  File "/usr/share/screen-resolution-extra/nvidia-polkit.py", line 42, in main
    conf = get_xkit_service()
  File "/usr/share/screen-resolution-extra/nvidia-polkit.py", line 33, in get_xkit_service
    service_object = dbus.SystemBus().get_object(SERVICE_NAME, OBJECT_PATH)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 241, in get_object
    follow_name_owner_changes=follow_name_owner_changes)
  File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 248, in init
    self._named_service = conn.activate_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 180, in activate_name_owner
    self.start_service_by_name(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 278, in start_service_by_name
    'su', (bus_name, flags)))
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ExecFailed: Failed to execute program com.ubuntu.ScreenResolution.Mechanism: Permission denied
ERROR: Unable to open X config file '/etc/X11/xorg.conf' for writing.

And later, when trying to update pip, I find this error:

$ sudo pip install --upgrade pip
The directory '/home/max/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.

score 13 · Accepted Answer · answered Oct 20 '16 at 01:57

I had the same issue, Ubuntu 16.04, 64-bit and a reinstall of all the supporting packages:

sudo aptitude reinstall apt apt-utils aptdaemon aptdaemon-data update-manager update-manager-core dbus

solved the issue. For note, a temporary workaround was to run sudo aptd in another terminal before running update-manager, and then update-manager was able to connect to aptd over dbus.

Unfortunately, I can't determine which package was the precise fix now that my issue is solved but if you try reinstalling each one-by-one, you can report back. A number of packages are/were broken on my system by a failed install resulting in odd issues like this one because of missing files, permissions and scripts; reinstalling packages is fixing these problems.

Alexey Demin · Answer 2 · 2017-05-15T22:43:53.043

9

I was about to reinstall the system until I found davidjb's solution.

So,

sudo apt-get install aptitude

followed by

sudo aptitude reinstall dbus

solved this problem for me.

edited May 15 '17 at 22:43

answered May 15 '17 at 22:23

Alexey Demin

151

score 6 · Answer 3 · edited Jul 08 '20 at 12:30

6

to add my 2 cents: Ubuntu-Mate 16.04, installed 15-June-2017, all updates. Similar problem appeared (dbus.exceptions.DBusExcept etc), solved by:

sudo aptitude reinstall python-pkg-resources python3-pkg-resources

Cheers, Valentin

edited Jul 08 '20 at 12:30

WinEunuuchs2Unix

105,762

answered Jun 16 '17 at 12:00

Valentin

61

loved.by.Jesus · Answer 4 · 2020-06-23T10:53:34.297

I had a similar problem as in the question, I could not run the update-manager in my Xubuntu 16.04., and got similar error messages, because I had changed the soft link python3 from python3.5 to python3.8.

At the moment, update-manager and their child processes/packages run only in python3.5.

So I edited the code of following files and changed the shbang at the top of the file from #!/usr/bin/python3 to #!/usr/bin/python3.5

/usr/sbin/aptd
/usr/bin/add-apt-repository
/usr/bin/update-manager

And I could ran update-manager, but without settings.

Caveat: it is not a very clean method to edit the /usr/bin installed files, but I rather do this quick fix and use the last version of python3.8 in my system. :)

Software & Updates crashes and will not open

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