#5 world.step in tutorial3

[Anonymous]

I am sorry to report a bug here,Maybe it's not a bug
want I am running tutorial3's demo code,it occur a run time error
which say "assertion 'bNormalizationResult' failed in _dNormalize4()[../../include/ode/odemath.h]"
i debug it for a long time and i find it occur at the line of "world.step(dt/n)",i don't know why?
need help
please send me an email : chaogu2.0@gmail.com
thanks very mush

[Alex]

Which version of Python and PyODE do you use? Which operating system? Did you compile ODE yourself or do you use a binary release?