Hello. I accidentally deleted 'Spotify' folder from 'opt' folder and now I can not uninstall Spotify. I tried with synaptic but an error occurred. I tried to write in a terminat this: sudo apt-get remove spotify-client but it does not work ( somthing error). How can I uninstall it? Pls

so (re)install it again first

This returns if I try to reinstall:

gpg: Total number processed: 1
gpg: unchanged: 1
Setting up spotify-client (1:0.9.11.27.g2b1a638.81-1) ...
/var/lib/dpkg/info/spotify-client.postinst: 5: cd: can't cd to /opt/spotify/spotify-client
dpkg: error processing package spotify-client (--configure):
subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
spotify-client
E: Sub-process /usr/bin/dpkg returned an error code (1)

I installed from here: http://www.omgubuntu.co.uk/2013/01/h...tu-12-04-12-10

try apt-get install --reinstall spotify-client
or download it and
dpkg -i --force-all <package>

none works
(*): sudo apt-get install --reinstall spotify-client
output:
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 275 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
E: Internal Error, No file name for spotify-client:amd64

(*): sudo dpkg -i --force-all spotify-client
(after download) output:
dpkg: error processing archive spotify-client (--install):
cannot access archive: No such file or directory
Errors were encountered while processing:
spotify-client

for dpkg you must download the package yourself and you need to specify the filename instead of the package name:
sudo dpkg -i --force-all <full path to spotify-client.deb>
in post #3 you tried to reinstall something. What was that, how did you try (what was the command exactly?)
Also you can try synaptic to force reinstall package.