unsolvable constraint

hi.
may you help me with this error.
i have added a prismatic joint in “invironment” to join the body and my segment in invironment;but when running the progrem i encounter this error:
[SIZE=1]ERROR(OBJ.MCH.KIN2)[/SIZE] : [SIZE=1]F:/AM…0/A…n/E…s/t…k/GaitVaughan.main.any[/SIZE] : [SIZE=1]Study[/SIZE] : Model is kinematically over-constrained : Position analysis failed : 1 unsolvable constraint(s) found
[SIZE=2]what can i do to solve the problem?:confused::frowning:
[/SIZE]

Hi,

In order to avoid multiple similar threads, please see the answer of the thread:
Professional Forum/AnyBody Managed Model Repository/backpack modeling

Best regards, Sylvain.