Spotify has stopped working on the latest Ubuntu today, 15.04 [closed]
There is a tutorial so you can fix it (beneath reinstalling). Just execute these two commands, it worked for me:
$ wget http://security.ubuntu.com/ubuntu/pool/main/libg/libgcrypt11/libgcrypt11_1.5.4-2ubuntu1.1_amd64.deb
$ sudo dpkg -i libgcrypt11_1.5.4-2ubuntu1.1_amd64.deb
Link to the source/tutorial: http://dgzen.pw/2015/04/21/installing-spotify-in-ubuntu-15-04/
Before doing the next steps, remove any Spotify ppa's.
Install the Spotify ppa:
sudo apt-add-repository -y "deb http://repository.spotify.com stable non-free" && sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 94558F59 && sudo apt-get update -qq && sudo apt-get install spotify-client
Then install the following:
wget http://ftp.au.debian.org/debian/pool/main/libg/libgcrypt11/libgcrypt11_1.5.0-5+deb7u2_amd64.deb
sudo dpkg -i libgcrypt11_1.5.0-5+deb7u2_amd64.deb
Enjoy!
This worked for me:
wget http://security.debian.org/debian-security/pool/updates/main/libg/libgcrypt11/libgcrypt11_1.5.0-5+deb7u3_amd64.deb
sudo dpkg -i libgcrypt11_1.5.0-5+deb7u3_amd64.deb
source: http://www.burakgon.com/2015/04/how-to-fix-error-while-loading-shared-libraries-libgcrypt-so-11-cannot-open-shared-object-file-error-on-ubuntu-15-04/
Installing libgcrypt11 is said to involve security issues (see this Spotify forum post which links to this NVD page). As mentioned in the Spotify forum post linked above, it's probably better to use the testing version of the Spotify client, available for download on this repository-origin.spotify.com page. It's not ideal either, but probably the best option.
Your version of Spotify uses a library called libgcrypt11 which was replaced in Ubuntu 15.04 by libgcrypt20.
A version of Spotify that doesn't require libgcrypt11 is available in the testing repository. That is the Spotify that eventually (after it has been tested and any serious bugs have been fixed) will replace the one from the stable repository you have now.
Edit your software sources to change the Spotify repository from stable to testing and then update your Spotify client. Some things will be different from before, for better or worse, but at least it starts.