package python-gconf_2.28.1-1ubuntu3 solve the problem.
Now error is:
Traceback (most recent call last):
File /usr/bin/update-manager, line 32, in module
from UpdateManager.UpdateManager import UpdateManager
File /usr/lib/python2.7/dist-packages/UpdateManager/UpdateManager.py, line
39,
Fix released with today's updates
** Changed in: update-manager (Ubuntu)
Status: New = Fix Released
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Update manager does not open in ubuntu natty (failed to load gconf)
https://bugs.launchpad.net/bugs/672800
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Bugs,
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Update manager does not open in ubuntu natty (failed to load gconf)
https://bugs.launchpad.net/bugs/672800
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
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