The following package names could not be resolved: * Makie (not found in project, manifest or registry)

General Usage
3

I have a similar problem as follows:

I. (@v1.7) pkg> add LabelledPetriNet;

ERROR: The following package names could not be resolved:

  • LabelledPetriNet (not found in project, manifest or registry)

II. julia> Pkg.add(“LabelledPetri”);
ERROR: The following package names could not be resolved:

  • LabelledPetri (not found in project, manifest or registry)

Any suggestions?