I had the similar problems, went directly to install the software and then noticed that, being a new machine most of the useful packages that we usually have installed like the ones in build-essentials were not installed.
Reading your post yesterday when I was installing myself would have saved me some time but hey, this is why we document these things so the next ones will not have this problem.
Very good explanation and it is good to see the spanish version too!
Thank you very much! Yes, I am used to having the same distro for many years, so I had forgotten that I had to install those packages. Totally, that's the point of documenting, I would have saved myself some time with fortran too if I had read other contributor's reports first. Cheers!