(Reading database ... 277866 files and directories currently installed.)
Preparing to unpack spotify-client_1%3a0.9.17.1.g9b85d43.7-1_amd64.deb ...
/var/lib/dpkg/info/spotify-client.prerm: 9: /var/lib/dpkg/info/spotify-client.prerm: ./unregister.sh: not found
dpkg: warning: subprocess old pre-removal script returned error exit status 127
dpkg: trying script from the new package instead ...
/var/lib/dpkg/tmp.ci/prerm: 9: /var/lib/dpkg/tmp.ci/prerm: ./unregister.sh: not found
dpkg: error processing archive spotify-client_1%3a0.9.17.1.g9b85d43.7-1_amd64.deb (--install):
 subprocess new pre-removal script returned error exit status 127
/var/lib/dpkg/info/spotify-client.postinst: 5: /var/lib/dpkg/info/spotify-client.postinst: ./register.sh: not found
dpkg: error while cleaning up:
 subprocess installed post-installation script returned error exit status 127
dpkg: error processing archive --force-all (--install):
 cannot access archive: No such file or directory
dpkg: error processing archive --no-triggers (--install):
 cannot access archive: No such file or directory
Errors were encountered while processing:
 spotify-client_1%3a0.9.17.1.g9b85d43.7-1_amd64.deb
 --force-all
 --no-triggers