fatal: Could not parse object '47a654c288d953cf4dde29b95ace800869146711'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at 47a654c added height sensors and changed superballModel
47a654c288d953cf4dde29b95ace800869146711