on mint 17 qiana
m@m-qiana ~ $ sudo apt-get install qt5-default qt5-qmake qtbase5-dev-tools qttools5-dev-tools \ build-essential libboost-dev libboost-system-dev \ libboost-filesystem-dev libboost-program-options-dev libboost-thread-dev \ libssl-dev libdb++-dev

Reading package lists... Done
Building dependency tree      
Reading state information... Done
E: Unable to locate package  build-essential
E: Unable to locate package  libboost-filesystem-dev
E: Unable to locate package  libssl-dev
please help