Cannot read Sketchup 2015 files

[sirkitree]

Doesn't seem that this can open .skp files built on Sketchup 2015. I keep getting a

Could not read file
Makefile:28: recipe for target `build/adventure.html' failed
make: *** [build/adventure.html] Error 1

[sirkitree]

Saving the file as 2014 format works just fine.

[desaintmartin]

See https://www.reddit.com/r/janusVR/comments/3rn7yy/sketchup2room_sketchup_2015_update/ for some experimentation from me.