the urdf path in line https://github.com/unified-force/UniFP/blob/68847a070f88d731058c3d8476929bc3b205f5bd/legged_gym/envs/b2/b2z1_pos_force_config.py#L242 should be `file = '{LEGGED_GYM_ROOT_DIR}/resources/robots/b2z1/b2z1.urdf'`
the urdf path in line
UniFP/legged_gym/envs/b2/b2z1_pos_force_config.py
Line 242 in 68847a0
file = '{LEGGED_GYM_ROOT_DIR}/resources/robots/b2z1/b2z1.urdf'