The following worked for me:
sudo apt-get install gfortran
on my system:
Ubuntu 15.10 (Linux 4.2.0-19-generic #23-Ubuntu x86_64 x86_64 x86_64 GNU/Linux)
The following worked for me:
sudo apt-get install gfortran
on my system:
Ubuntu 15.10 (Linux 4.2.0-19-generic #23-Ubuntu x86_64 x86_64 x86_64 GNU/Linux)