为什么SketchUp载入文件 frontface.rb 时失败，重装也不行？

su2015载入文件 frontface.rb 时出现 Error: C:/Users/lenovo/AppData/Roaming/SketchUp/SketchUp 2015/SketchUp/Plugins/frontface.rb:37: invalid multibyte char (UTF-8) C:/Users/lenovo/AppData/Roaming/SketchUp/SketchUp 2015/SketchUp/Plugins/frontface.rb:37: invalid multibyte char (UTF-8) C:/Users/lenovo/AppData/Roaming/SketchUp/SketchUp 2015/SketchUp/Plugins/frontface.rb:37: syntax error, unexpected end-of-input, expecting keyword_end Sketchup::set_status_text "»¬¹ýÐèÒª·­×ªµÄ·´Ãæ."