fatal: Could not parse object '23be63321e0ff5b92ae9de49982b207f07e3223f'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at 23be633 Modified doc source path.
23be63321e0ff5b92ae9de49982b207f07e3223f