i can't installl any package from software center. and it automatically closes whenever i try to install a software from it.
i updated my ubuntu to the 13 th version now itself
the terminal output is
message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
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/aptdaemon/client.py", line 1614, in _run_transaction_helper
daemon = get_aptdaemon(self.bus)
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1689, in get_aptdaemon
False),
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object
follow_name_owner_changes=follow_name_owner_changes)
File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in __init__
self._named_service = conn.activate_name_owner(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner
self.start_service_by_name(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name
'su', (bus_name, flags)))
File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
2013-07-28 15:40:46,875 - softwarecenter.db.pkginfo_impl.aptcache - ERROR - simulate failed
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1585, in on_error
error.raise_exception()
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/aptdaemon/client.py", line 1614, in _run_transaction_helper
daemon = get_aptdaemon(self.bus)
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1689, in get_aptdaemon
False),
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object
follow_name_owner_changes=follow_name_owner_changes)
File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in __init__
self._named_service = conn.activate_name_owner(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner
self.start_service_by_name(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name
'su', (bus_name, flags)))
File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
message, timeout)
DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
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/aptdaemon/client.py", line 1614, in _run_transaction_helper
daemon = get_aptdaemon(self.bus)
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1689, in get_aptdaemon
False),
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object
follow_name_owner_changes=follow_name_owner_changes)
File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in __init__
self._named_service = conn.activate_name_owner(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner
self.start_service_by_name(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name
'su', (bus_name, flags)))
File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
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/aptdaemon/client.py", line 1614, in _run_transaction_helper
daemon = get_aptdaemon(self.bus)
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1689, in get_aptdaemon
False),
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object
follow_name_owner_changes=follow_name_owner_changes)
File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in __init__
self._named_service = conn.activate_name_owner(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner
self.start_service_by_name(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name
'su', (bus_name, flags)))
File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
2013-07-28 15:41:07,661 - softwarecenter.backend - WARNING - _on_trans_error: 'DBusException('Launch helper exited with unknown return code 1',)' 'None' 'artha'
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/aptdaemon/client.py", line 1614, in _run_transaction_helper
daemon = get_aptdaemon(self.bus)
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1689, in get_aptdaemon
False),
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object
follow_name_owner_changes=follow_name_owner_changes)
File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in __init__
self._named_service = conn.activate_name_owner(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner
self.start_service_by_name(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name
'su', (bus_name, flags)))
File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
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/aptdaemon/client.py", line 1614, in _run_transaction_helper
daemon = get_aptdaemon(self.bus)
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1689, in get_aptdaemon
False),
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object
follow_name_owner_changes=follow_name_owner_changes)
File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in __init__
self._named_service = conn.activate_name_owner(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner
self.start_service_by_name(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name
'su', (bus_name, flags)))
File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
2013-07-28 15:41:24,517 - softwarecenter.backend - WARNING - _on_trans_error: 'DBusException('Launch helper exited with unknown return code 1',)' 'None' 'artha'
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/aptdaemon/client.py", line 1614, in _run_transaction_helper
daemon = get_aptdaemon(self.bus)
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1689, in get_aptdaemon
False),
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object
follow_name_owner_changes=follow_name_owner_changes)
File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in __init__
self._named_service = conn.activate_name_owner(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner
self.start_service_by_name(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name
'su', (bus_name, flags)))
File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
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/aptdaemon/client.py", line 1614, in _run_transaction_helper
daemon = get_aptdaemon(self.bus)
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1689, in get_aptdaemon
False),
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object
follow_name_owner_changes=follow_name_owner_changes)
File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in __init__
self._named_service = conn.activate_name_owner(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner
self.start_service_by_name(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name
'su', (bus_name, flags)))
File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
2013-07-28 15:41:31,798 - softwarecenter.backend - WARNING - _on_trans_error: 'DBusException('Launch helper exited with unknown return code 1',)' 'None' 'artha'
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/aptdaemon/client.py", line 1614, in _run_transaction_helper
daemon = get_aptdaemon(self.bus)
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1689, in get_aptdaemon
False),
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object
follow_name_owner_changes=follow_name_owner_changes)
File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in __init__
self._named_service = conn.activate_name_owner(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner
self.start_service_by_name(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name
'su', (bus_name, flags)))
File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
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/aptdaemon/client.py", line 1614, in _run_transaction_helper
daemon = get_aptdaemon(self.bus)
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1689, in get_aptdaemon
False),
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object
follow_name_owner_changes=follow_name_owner_changes)
File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in __init__
self._named_service = conn.activate_name_owner(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner
self.start_service_by_name(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name
'su', (bus_name, flags)))
File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
2013-07-28 15:41:33,201 - softwarecenter.backend - WARNING - _on_trans_error: 'DBusException('Launch helper exited with unknown return code 1',)' 'None' 'artha'
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/aptdaemon/client.py", line 1614, in _run_transaction_helper
daemon = get_aptdaemon(self.bus)
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1689, in get_aptdaemon
False),
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object
follow_name_owner_changes=follow_name_owner_changes)
File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in __init__
self._named_service = conn.activate_name_owner(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner
self.start_service_by_name(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name
'su', (bus_name, flags)))
File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
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/aptdaemon/client.py", line 1614, in _run_transaction_helper
daemon = get_aptdaemon(self.bus)
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1689, in get_aptdaemon
False),
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object
follow_name_owner_changes=follow_name_owner_changes)
File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in __init__
self._named_service = conn.activate_name_owner(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner
self.start_service_by_name(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name
'su', (bus_name, flags)))
File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
2013-07-28 15:41:35,752 - softwarecenter.backend - WARNING - _on_trans_error: 'DBusException('Launch helper exited with unknown return code 1',)' 'None' 'artha'
2013-07-28 15:41:36,944 - softwarecenter.ui.gtk3.widgets.exhibits - WARNING - download failed: '<class 'gi._glib.GError'>', 'Operation not supported'