I am trying to solve the "Vehicle Routing Problem", using ModelBuilder.
For example, using Exercise 7: Servicing a set of orders with a fleet of vehicles from the Network Analyst Tutorial:
- add a "Make Vehicle Routing Problem Layer" tool
- add a "Add Locations" tool and set "stores" as "input location"
- add a"Add Locations" tool and set "Distribution Center" as "input location"
- add a "solve"tool to calculate.
That's all ... and I have a error "Routes class is empty."
I think I have to add that something connected with the route class, but I did not understand how to do it in ModelBuilder
How to make the scheme correctly?
PS Sorry for my english