Yeaah I've resolve this problem with following command
> sudo apt-get install ppa-purge
> sudo ppa-purge xorg-edgers
Thanks a lot :D
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https://bugs.launchpad.net/bugs/1069133
Title:
Get
Public bug reported:
Error when ugrading to Ubuntu 14.04
I don't know why become like this.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: ubuntu-release-upgrader-core 1:0.205.7 [origin: unknown]
ProcVersionSignature: Ubuntu 3.11.0-20.34-generic 3.11.10.6
Uname: Linux 3.11.0-20-generic x86