Help to install orocos on ubuntu

Hi, I have tried nearly two weeks to install orocos tool-chain2.6 on ubuntu, I follow the guide of Quick Start on Linux (site is http://www.orocos.org/wiki/orocos/toolchain/quick-start-linux)every time I got an error which I can't understand, I nearly have a breakdown. And is there anyone who can tell me how to install orocos tool-chain2.6 on ubuntu14, your kind action will be appreciated!