Ubuntu – Not able to install from ubuntu software center

Not able to install any software from ubuntu software center. There is no response after pressing install button.

The error which I get

Traceback (most recent call last):

File "/usr/lib/python2.7/dist-packages/defer/init.py", line 475, in
_inline_callbacks
result = gen.send(result)

File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1622, in
_run_transaction_helper

daemon = get_aptdaemon(self.bus)

File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1696, 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 475, in
_inline_callbacks
result = gen.send(result)
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1622, in
_run_transaction_helper
daemon = get_aptdaemon(self.bus)
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1696, 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

Edit 1

New errors after running the command given in the answer.

I tried with sudo too.

A part of the error code

Removing /usr/local/lib/python2.7/dist-packages/setuptools-1.4.1-py2.7.egg
Copying setuptools-1.4.1-py2.7.egg to /usr/local/lib/python2.7/dist-packages
setuptools 1.4.1 is already the active version in easy-install.pth
Installing easy_install script to /usr/local/bin
error: /usr/local/bin/easy_install: Permission denied
Something went wrong during the installation.
See the error message above.