What i doing worng ? KeyError: 'bpy_prop_collection[key]: key "" not found'

[svsdval]

`Traceback (most recent call last):
File "/home/svsdval/soft/blendercam/scripts/addons/cam/ops.py", line 234, in execute
utils.getPath(context, o)
File "/home/svsdval/soft/blendercam/scripts/addons/cam/utils.py", line 3432, in getPath
chd = getChangeData(operation)
File "/home/svsdval/soft/blendercam/scripts/addons/cam/utils.py", line 239, in getChangeData
obs = [bpy.data.objects[o.object_name]]
KeyError: 'bpy_prop_collection[key]: key "" not found'

location: :-1
test.zip

`

[ksuprynowicz]

The Carve operation needs to have two sources set: curve source that will be carved and object source on which carving will be done.

Let me know if it works for you.
If you want to machine whole surface instead, look at the Parallel operation.

[svsdval]

Thanks