has no "Reference Paths" in "Properties"

#### Issue details
i want to build the MissionPlanner with VS2017, so i follow the introduction on the http://ardupilot.org/dev/docs/buildin-mission-planner.html,

but at this step",In the Solution Explorer right click the MissionPlanner project, Properties, Reference Paths", i cannot find the "Reference Paths" in the "Properties". So when i build the mission, there are so many errors, most of the errors are missing dlls.

i want to konw how to solve the problem...

THANKS!

#### Version
the latest version

#### Platform
[0 ] All
[ ] AntennaTracker
[ ] Copter
[ ] Plane
[ ] Rover
[ ] Sub

#### Airframe type

#### Hardware type
pixhawk

#### Logs
_Please provide a link to any relevant logs that show the issue_

Start with the linked Mission Planner build guide and the MissionPlanner project properties in the repository, checking the documented VS2017 “Reference Paths” step against the current solution. Reproduce the build and identify whether the missing DLL errors come from outdated instructions or project references; done when the guide or project setup enables a successful build.

Written by the indexing model from the issue text.