matchmoving "setup tracking scene" error

Hi Ive been trying out matchmoving in blender and everything is fine until I hit “setup tracking scene”

then I get

location: <unknown location>:-1
Traceback (most recent call last):
File “C:\Users\Shadow3\Downloads\9568_win7.x64-55460\Win7.x64-55460\2.66\scrip
ts\startup\bl_operators\”, line 844, in execute
File “C:\Users\Shadow3\Downloads\9568_win7.x64-55460\Win7.x64-55460\2.66\scrip
ts\startup\bl_operators\”, line 580, in _setupNodes
rlayer_bg =‘R_LAYERS’)
RuntimeError: Error: Node type R_LAYERS undefined

Ive tried the same file and redone the tracking from scratch more than once on different versions of blender and it keeps happening

Have i messed something up or is my blender broken?

In this particular case - Blender is broken. As I see - you are using blender’s revision 55460. This is one of the versions of blender where python API of node editor changed, but not all of the features (scripts) have been updated.
Download latest build and your problem will be gone.

However don’t worry much, because even though you got this scary error - it is only related to creating node setup. Everything else is fine.

Thanks Bartek! after trying it on a bunch of blender versions I had I thought I may have messed something up.

But I downloaded a new version and it all works now :slight_smile: