Dear sir I'm a PhD student in Cardiff university(Wales,UK). I'm trying to install mpich3.1.3 but I have the attached message. I;m not professional in linux , so would you please tell me step by step how can I install it correctly. by the way I need fortran compiler so I installed ( parallel_studio_xe_2015_update1 ) and my fortran compiler ifort 15 and my system is Ubuntu 14.04.