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I just installed Ubuntu (12.04.4) and I upgraded to 13.10

I have no idea how to fix this :/

$ sudo apt-get install -f

Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
0 upgraded, 0 newly installed, 1 to remove and 2 not upgraded.
1 not fully installed or removed.
After this operation, 1,718 kB disk space will be freed.
Do you want to continue [Y/n]? y
(Reading database ... 175174 files and directories currently installed.)
Removing xserver-common-lts-saucy ...
Removing 'diversion of /usr/lib/xorg/protocol.txt to /usr/lib/xorg/protocol-precise.txt by xserver-common-lts-saucy'
dpkg-divert: error: rename involves overwriting `/usr/lib/xorg/protocol.txt' with
  different file `/usr/lib/xorg/protocol-precise.txt', not allowed
dpkg: error processing xserver-common-lts-saucy (--remove):
 subprocess installed post-removal script returned error exit status 2
Errors were encountered while processing:
E: Sub-process /usr/bin/dpkg returned an error code (1)
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post the output of ls /usr/lib/xorg. – Avinash Raj Feb 11 '14 at 7:06
ls /usr/lib/xorg modules protocol-precise.txt protocol.txt – Terho Feb 11 '14 at 7:09
it did work thanks man – Terho Feb 11 '14 at 7:17
you are welcome @Terho. – Avinash Raj Feb 11 '14 at 7:19
This helped me too.Everything is fine now.Thanks :) – user277555 May 3 '14 at 19:00
up vote 4 down vote accepted

Try the below commands,

sudo mv /usr/lib/xorg/protocol-precise.txt /usr/lib/xorg/protocol-precise.txt.bak
sudo apt-get -f install

The above commands rename that text file protocol-precise.txt to protocol-precise.txt.bak and fixes the dependencies.

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