Please find enclosed bug tracker report text below. Using SU8 and WIN7 64bit I created an 18 sided polygon room, symetrical - then created two windows in one of the sides (walls) then I selected these and rotated them creating a copy (ctrl key) into the next adjacent wall, this generated the error message, the geometry seems fine and all functions normally.
Sorry...the plugin has encountered an error. This error may cause unpredictable behavior in the plugin--continue this session with caution! It would probably be a good idea to exit SketchUp and start again.
For help, please visit <http://openstudio.sourceforge.net> to join the user support mailing list, browse the list of known issues in the bug tracker, or post a new bug report.
When reporting a bug, please include the error message and backtrace below (scroll down):
ERROR:
TypeError
reference to deleted Face
BACKTRACE:
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/OpenStudio/sketchup/Sketchup.rb:320:in `outer_loop'
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/OpenStudio/sketchup/Sketchup.rb:320:in `outer_polygon'
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/OpenStudio/lib/interfaces/SubSurface.rb:240:in `default_surface_type'
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/OpenStudio/lib/interfaces/SubSurface.rb:23:in `create_input_object'
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/OpenStudio/lib/interfaces/DrawingInterface.rb:218:in `create_from_entity'
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/OpenStudio/lib/interfaces/DrawingInterface.rb:206:in `new_from_entity'
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/OpenStudio/lib/observers/SurfaceGroupEntitiesObserver.rb:139:in `onElementAdded'
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/OpenStudio/lib/AsynchProc.rb:16:in `initialize'