Aircraft 3D model display error due to getting units for the promoted name

[hschilling]

Description

When creating the Aircraft 3D model display in the dashboard, some examples have problems getting the units for variables which is needed when making this display. For the example below the error you see in the Aircraft 3d model tab is

Unable to create aircraft 3D model display due to error: Can't get units for the promoted name 'aircraft:fuselage:length' because it refers to multiple inputs: ['pre_mission.core_subsystems.core_geometry.characteristic_lengths.aircraft:fuselage:length', 'pre_mission.core_subsystems.core_geometry.fuselage.aircraft:fuselage:length', 'pre_mission.core_subsystems.core_geometry.fuselage_prelim.aircraft:fuselage:length', 'pre_mission.core_subsystems.core_mass.electrical.aircraft:fuselage:length', 'pre_mission.core_subsystems.core_mass.fuselage.aircraft:fuselage:length', 'pre_mission.core_subsystems.core_mass.landing_group.main_landing_gear_length.aircraft:fuselage:length']. Access the units using an absolute path name.

Example

Do these commands

python ./aviary/examples/external_subsystems/simple_weight/run_simple_weight.py
aviary dashboard run_simple_weight

Aviary Version

0.9.4-dev

Relevant environment information

No response

[hschilling]

Duplicate of #588