fatal: Could not parse object 'e15595acb942ad08ce980aa883392d0c58947d96'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at e15595a Updated JSON file for NAS testing.
e15595acb942ad08ce980aa883392d0c58947d96