vray个别模型渲染不了

vray for su2014新建体块能渲染，之前做的模型点渲染无反应，下方显示V-Ray encountered an error while trying to render,please check the ruby console for error

Ruby 控制台显示
==== V-Ray for SketchUp =====
Done processing compdefs - Elapsed time: 0.935

Scene processed in 0.947 seconds
"\xE9" from ASCII-8BIT to UTF-8 + ["C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:875:in `write'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:875:in `<<'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:875:in `begin_asset'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:908:in `write_two_sided_material'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:978:in `block in write_material_info'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:965:in `each'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:965:in `write_material_info'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:1714:in `write_to_xml'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:1913:in `start_render'", "C:/ProgramData/ASGVIS/VfS/Ruby/R2PCallbacks.rb:537:in `start_render_cb'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:1869:in `direct_send'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:1869:in `render'", "C:/ProgramData/ASGVIS/VfS/Ruby/R2P.rb:1431:in `launch_vray_render'", "C:/ProgramData/ASGVIS/VfS/Ruby/R2PToolbar.rb:30:in `block in <module:VRayForSketchUp>'", "SketchUp:1:in `call'"]

Scene fully processed in 1.213 seconds
-----


==== V-Ray for SketchUp =====
Done processing compdefs - Elapsed time: 0.842

Scene processed in 0.853 seconds
"\xE9" from ASCII-8BIT to UTF-8 + ["C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:875:in `write'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:875:in `<<'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:875:in `begin_asset'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:908:in `write_two_sided_material'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:978:in `block in write_material_info'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:965:in `each'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:965:in `write_material_info'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:1714:in `write_to_xml'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:1913:in `start_render'", "C:/ProgramData/ASGVIS/VfS/Ruby/R2PCallbacks.rb:537:in `start_render_cb'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:1869:in `direct_send'", "C:/ProgramData/ASGVIS/VfS/Ruby/VfSExport.rb:1869:in `render'", "C:/ProgramData/ASGVIS/VfS/Ruby/R2P.rb:1431:in `launch_vray_render'", "C:/ProgramData/ASGVIS/VfS/Ruby/R2PToolbar.rb:30:in `block in <module:VRayForSketchUp>'", "SketchUp:1:in `call'"]

Scene fully processed in 1.032 seconds
各位大神这是怎么回事啊

我现在也是遇到这种情况啊，本来一开始模型还可以渲染的，但是后面不突然不行了，渲染其他文件就可以，求大神啊

刚才我把模型里面灯光删掉重新打一次，然后再渲染就行了

这个怎么解决的啊？？