Hi, I am trying to build hdf5-parallel-openmpi@1.10.7 (in order to build dealii), but it fails with some errors that I know not how to deal with. They look like the following: [1621604416.381990] [localhost:25713:0] tcp_iface.c:602 UCX ERROR opendir(/sys/class/net) failed: No such file or directory I've attached the full build log. I'm building with: guix build hdf5-parallel-openmpi@1.10.7 -K Does anyone have any pointers? (I seem to recall having successfully installed dealii back in September or something.) Thanks, Paul