Hi adi,
The jammr Ubuntu package has dependencies which you must install first:
libogg0 (>= 1.0rc3), libportaudio2 (>= 19+svn20101113), libportmidi0, libqt5core5a (>= 5.0.2), libqt5gui5 (>= 5.0.2) | libqt5gui5-gles (>= 5.0.2), libqt5network5 (>= 5.0.2), libqt5widgets5 (>= 5.2.0), libvorbis0a (>= 1.1.2), libvorbisenc2 (>= 1.1.2)
$ sudo apt-get install libogg0 libportaudio2 libportmidi0 libqt5core5a libqt5gui5 libqt5network5 libqt5widgets5 libvorbis0a libvorbisenc2
The only tricky package is libportmidi0, which is part of the “universe” repository. If your system cannot find it, please see the Ubuntu documentation that explains repositories and how to add them:
https://help.ubuntu.com/community/Repositories/UbuntuIf you need more help installing on Ubuntu Studio 14.04.1, please copy-paste the error message.
Stefan