BoundsError: attempt to access 0-element Vector{Vector{Int64}} at index [1] #2
Description
Dear, timmyfaraday
When I run @time solve!(ntw) in wind_farm_anholt.jl，there are some erros:
BoundsError: attempt to access 0-element Vector{Vector{Int64}} at index [1]
I don't know how to solve the problem, thank you very much.