fatal: Could not parse object '3c853df26170aace4322b38d26941286b22b9c83'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at 3c853df Update README.md
3c853df26170aace4322b38d26941286b22b9c83