"Error in routine gipaw_readin (1): reading inputgipaw namelist" means
that the file with the ... / namelist is nonexistent, empty,
corrupted, or that the namelist has a problem. Typically, there is a syntax
error or something that disturbs its reading anyway:
Dear QE-GIPAW users and developers,
I am trying to calculate hyperfine coupling constants for various solids
containing Cu. For 4 different solids SCF and GIPAW calculations finished
successfully. For 1 solid, after successful SCF calculation, GIPAW immediately
ended with the following