skalp安装2018su出错

载入文件 C:/Users/Administrator/AppData/Roaming/SketchUp/SketchUp 2018/SketchUp/Plugins/Skalp_Skalp/chunky_png/lib/chunky_png.rb 时出错
Error: C:/Program Files/SketchUp/SketchUp 2018/Tools/RubyStdLib/rubygems/core_ext/kernel_require.rb:54:in `require'
C:/Program Files/SketchUp/SketchUp 2018/Tools/RubyStdLib/rubygems/core_ext/kernel_require.rb:54:in `require'
C:/Users/Administrator/AppData/Roaming/SketchUp/SketchUp 2018/SketchUp/Plugins/Skalp_Skalp/chunky_png/lib/chunky_png.rb:3:in `<top (required)>'
C:/Users/Administrator/AppData/Roaming/SketchUp/SketchUp 2018/SketchUp/Plugins/Skalp_Skalp/Skalp_loader.rb:439:in `require'
C:/Users/Administrator/AppData/Roaming/SketchUp/SketchUp 2018/SketchUp/Plugins/Skalp_Skalp/Skalp_loader.rb:439:in `<module:Skalp>'
C:/Users/Administrator/AppData/Roaming/SketchUp/SketchUp 2018/SketchUp/Plugins/Skalp_Skalp/Skalp_loader.rb:1:in `<encoded>'
C:/Users/Administrator/AppData/Roaming/SketchUp/SketchUp 2018/SketchUp/Plugins/Skalp_Skalp/Skalp_loader.rb:6:in `RGLoader_load'
C:/Users/Administrator/AppData/Roaming/SketchUp/SketchUp 2018/SketchUp/Plugins/Skalp_Skalp/Skalp_loader.rb:6:in `<top (required)>'
C:/Program Files/SketchUp/SketchUp 2018/Tools/extensions.rb:197:in `require'
C:/Program Files/SketchUp/SketchUp 2018/Tools/extensions.rb:197:in `load'
C:/Users/Administrator/AppData/Roaming/SketchUp/SketchUp 2018/SketchUp/Plugins/Skalp_Skalp.rb:99:in `register_extension'
C:/Users/Administrator/AppData/Roaming/SketchUp/SketchUp 2018/SketchUp/Plugins/Skalp_Skalp.rb:99:in `load_extension'
C:/Users/Administrator/AppData/Roaming/SketchUp/SketchUp 2018/SketchUp/Plugins/Skalp_Skalp.rb:80:in `check_IE_version'
C:/Users/Administrator/AppData/Roaming/SketchUp/SketchUp 2018/SketchUp/Plugins/Skalp_Skalp.rb:128:in `<module:Skalp>'
C:/Users/Administrator/AppData/Roaming/SketchUp/SketchUp 2018/SketchUp/Plugins/Skalp_Skalp.rb:15:in `<top (required)>'