As I go along this tutorial (which is awesome!), I copy-paste most of the commands that I encounter to work along inside my own spack installation. When I copy-paste this line "spack install netlib-scalapack ^openmpi ^netlib-lapack" from [here](https://spack-tutorial.readthedocs.io/en/latest/tutorial_modules.html#build-the-software-that-will-be-used-in-the-tutorial) it fails with an error. After some digging I found out that this is the expected behavior and should only be encountered [later in the tutorial](https://spack-tutorial.readthedocs.io/en/latest/tutorial_advanced_packaging.html#providing-libraries-to-dependents). I guess a note saying "don't copy-paste these commands here" right in front of this would help: $ spack install netlib-scalapack ^openmpi ^openblas $ spack install netlib-scalapack ^mpich ^openblas $ spack install netlib-scalapack ^openmpi ^netlib-lapack $ spack install netlib-scalapack ^mpich ^netlib-lapack $ spack install py-scipy ^openblas