local variable 'tmp' referenced before assignment

[YuRongHao2233]

in obj_track/utils.py function load_targets,

for i in range(0, 6):
        tmp = np.asarray(tmp, dtype=np.float32) / 1e3
        tmp = torch.from_numpy(tmp)#.to(device)
        targets.append( tmp )

    return targets, bbs

local variable 'tmp' referenced before assignment