fatal: Could not parse object 'c784e73733528141b047a6f7b796e68dcaac905e'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at c784e73 Update install for better v 1.1 information.
c784e73733528141b047a6f7b796e68dcaac905e