I think, I have the same problem here: http://askubuntu.com/questions/371362/policykit-error-when-trying-to-install-remove-programs-in-the-software-after-upg
I think, I have the same problem here: http:// askubuntu. com/questions/ 371362/ policykit- error-when- trying- to-install- remove- programs- in-the- software- after-upg