[Fluxus] libode internal error 2

[gabor papp]

> I can't reproduce this with ode 0.11.1 - is there a particular command
> which crashes? I've ran self-test, collide-seq.scm and
> physics-joints.scm ok.
on osx i tried ode 0.11.1 with this script:

(define b (build-cube))
(active-box b)

got the following crash:

ODE Message 2: mass must be > 0 in dMassCheck() File mass.cpp Line 49

ODE Message 2: mass must be > 0 in dMassCheck() File mass.cpp Line 49

ODE Message 2: mass must be > 0 in dMassCheck() File mass.cpp Line 49

ODE INTERNAL ERROR 1: assertion "dMassCheck(mass)" failed in 
dBodySetMass() [ode.cpp]
Abort trap

best,
gabor