i installed sketchup pro 2015 for mac and vray_beta_16022_sketchup_osx_x86 but it doesn´t work

got this information:

Fehler beim Laden der Datei vfs.rb
Error: #<LoadError: dlopen(/Library/Application Support/SketchUp 2015/SketchUp/Plugins/VfS/RubyToPython.bundle, 9): no suitable image found. Did find:
/Library/Application Support/SketchUp 2015/SketchUp/Plugins/VfS/RubyToPython.bundle: mach-o, but wrong architecture - /Library/Application Support/SketchUp 2015/SketchUp/Plugins/VfS/RubyToPython.bundle>
/Applications/SketchUp 2015/SketchUp.app/Contents/Frameworks/Ruby.framework/Versions/2.0/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in require' /Applications/SketchUp 2015/SketchUp.app/Contents/Frameworks/Ruby.framework/Versions/2.0/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in require'
/Library/Application Support/SketchUp 2015/SketchUp/Plugins/vfs.rb:76:in `<top (required)>'

can you help plesase?