fatal: Could not parse object 'de5f5f83746ba8f05459e583110e68d8457a1af4'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at de5f5f8 Added base docs.
de5f5f83746ba8f05459e583110e68d8457a1af4