请问怎么解决Vray3.4安装后，打开SU2017提示载入文件 vfs.rb 时出错？

载入文件 vfs.rb 时出错
Error: #<LoadError: cannot load such file -- C:\Program Files\Chaos Group\V-Ray\V-Ray 3.4 for SketchUp\extension/VfS2017>
D:/SketchUp Pro 2017/Tools/RubyStdLib/rubygems/core_ext/kernel_require.rb:54:in `require'
D:/SketchUp Pro 2017/Tools/RubyStdLib/rubygems/core_ext/kernel_require.rb:54:in `require'
C:/ProgramData/SketchUp/SketchUp 2017/SketchUp/Plugins/vfs.rb:19:in `<module:VRay>'
C:/ProgramData/SketchUp/SketchUp 2017/SketchUp/Plugins/vfs.rb:4:in `<top (required)>'