fatal: Could not parse object '8a839f83e1200ca172da8251a77fa65007b8c822'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at 8a839f8 Improved markdown formatting
8a839f83e1200ca172da8251a77fa65007b8c822