Ok I solved installing the Debian testing version with the following shell commands:
$ wget http://ftp.de.debian.org/debian/pool/main/f/fs-uae/fs-uae-launcher_3.0.5+dfsg-1_all.deb # dpkg -i ./fs-uae-launcher_3.0.5+dfsg-1_all.deb # apt-get install --fix-broken
