Comment 37 for bug 680192

hey arsalan, i think you are not using root to open these commsnds....
In command prompt type: su
It will ask password for root. After that you can edit those changes.
P.S. su means super user.

post of "Wetware Random Number Generator" (tnrng-purge-deactivatedaccount) worked for my case that is new /etc/apparmor.d/usr.bin.vidalia looks like is:

#include <tunables/global>

/usr/bin/vidalia {
  #include <abstractions/lightdm>
  #include <abstractions/kde>
  #include <abstractions/nameservice>

  owner @{HOME}/.vidalia/ rw,
  owner @{HOME}/.vidalia/** rwmk,

  /{var/,}run/tor/control rw,
  /{var/,}run/tor/control.authcookie r,

  /usr/share/icons/*/index.theme k,

  owner @{HOME}/.tor/ rw,
  owner @{HOME}/.tor/** rwmk,

  # Site-specific additions and overrides. See local/README for details.
  #include <local/usr.bin.vidalia>
}