Gurobi on Julia 1.4

That is super weird. It looks like it found Gurobi but then it didn’t?

Where is your Gurobi installed? Try setting the GUROBI_HOME environment variable to /Library/gurobi902/mac64 (or equivalent, depending on where you installed it).

What is the output of

using Libdl
Libdl.dlopen("libgurobi90.dylib")