AssertionError: Could not recognize scene type!

[hxj2580]

python gaussian_splatting/train.py -s dog_7000.ply --iterations 7000 -m out

get error: Optimizing out Output folder: out [27/04 17:19:20] Tensorboard not available: not logging progress [27/04 17:19:20] Traceback (most recent call last): File "/home/ubuntu/hxj/SuGaR-main/gaussian_splatting/train.py", line 219, in training(lp.extract(args), op.extract(args), pp.extract(args), args.test_iterations, args.save_iterations, args.checkpoint_iterations, args.start_checkpoint, args.debug_from) File "/home/ubuntu/hxj/SuGaR-main/gaussian_splatting/train.py", line 35, in training scene = Scene(dataset, gaussians) File "/home/ubuntu/hxj/SuGaR-main/gaussian_splatting/scene/init.py", line 49, in init assert False, "Could not recognize scene type!" AssertionError: Could not recognize scene type!