!!!=> fromUIHandler: parameter string = 73-0__vzrefreshMaterialstruefalsefalse Error: # /Library/Application Support/Google SketchUp 8/SketchUp/Plugins/Material_Maintenance/Material_Maintenance.rb:109:in `fromUIHandler' /Library/Application Support/Google SketchUp 8/SketchUp/Plugins/Material_Maintenance/Material_Maintenance.rb:108:in `each' /Library/Application Support/Google SketchUp 8/SketchUp/Plugins/Material_Maintenance/Material_Maintenance.rb:108:in `fromUIHandler' /Library/Application Support/Google SketchUp 8/SketchUp/Plugins/Material_Maintenance/Material_Maintenance.rb:75:in `initialise'