fatal: Could not parse object '6c6b06d521240fbaee5bce5b821154932d758076'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at 6c6b06d Consolidate wiki and readme
6c6b06d521240fbaee5bce5b821154932d758076