Error in Applying ERS orbit informations

Microwave Toolbox
12

I tried to install libgfortran3 forcing the action

sudo dpkg -i --force-depends libgfortran3_6.4.0-17ubuntu1_amd64.

but there are some unsatisfied dependencies:

  1. gcc-6-base (= 6.4.0-17ubuntu1) it is impossible to install
  2. libquadmath0 which is not to be installed

the last *libgfortran3 is compiled with Gcc-6 which is now no more supported