fatal: Could not parse object 'bdc9c008a31909086992f608d290e77ef9f00831'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at bdc9c00 Fixed hard-coded directory for WorldBuilderTest
bdc9c008a31909086992f608d290e77ef9f00831