The only (direct) restriction set by GRUtils is the version of GR, which must be anyone between 0.42 and 0.49 (current). Can you check ]st GR to see what version of GR you have in your environment?
If it’s too messy, maybe you should try a clean environment for your project. See:
https://julialang.github.io/Pkg.jl/stable/environments/
In short: cd to a folder that does not belong to any other Julia project, and from the REPL:
] activate .
# Now `] st` should tell you are in an empty environment
] add GRUtils
# And `]add` other dependencies you might need
When you do your tests, be sure that when you are using any package you have previously ]activate-d the enviornment you want to work on, and the package has not been previously loaded in that session.