@organicmotion said:

"File seems not to exist.
Please check that the file path does not contain Unicode characters. This is a limitation of SketchUp and its Ruby version."

I am getting the same problem (Mac OSX 10.9.2) with v 2013 and 2014 - with Google SketchUp 8.0.15157 - the old version works fine. Sad, because SU is a great tool for visualization AND a converter to make X3D files from GPS-GPX tracks thus: GPS tracker > GPX > KML (gpsbabel or GPS Viz) > SKP > VRML (WRL) > X3D (via aopt). See the models here: http://abdallah.hiof.no/drone/index.html