Amarok could not find any sound-engine plugins. Amarok is now updating the KDE configuration database. Please wait a couple of minutes, then restart Amarok.
If this does not help, it is likely that Amarok is installed under the wrong prefix, please fix your installation using:
$ cd /path/to/amarok/source-code/
$ su -c "make uninstall"
$ ./configure --prefix=`kde-config --prefix` && su -c "make install"
$ kbuildsycoca
$ amarok
More information can be found in the README file. For further assistance join us at #amarok on irc.freenode.net.