I run the

python agents/robot_traj/app.py

but the Gradio's website does not have any output.
The console terminal output is

expected bytes, NoneType found

I try to print the model's output, find this:

Mark 6 at [251,92], Mark 8 at [250,22] should be moved, and their future positions are:

"Mark 6": "[[252,90],[251,87],[247,86],[241,87],[232,89],[221,95],[211,101],[202,107]]"

"Mark 8": "[[251,20],[250,17],[247,16],[240,18],[230,23],[218,32],[206,43],[196,54]]"

The analysis is correct.
Debug found that the error appeared in robot_traj/utils/visualier.py

Traceback (most recent call last): File "/home/user/nlp/Magma/agents/robot_traj/test.py", line 52, in <module> vis.visualize(video, overlay_traces, overlay_visibility) File "/home/user/nlp/Magma/agents/robot_traj/utils/visualizer.py", line 127, in visualize self.save_video(res_video, filename=filename, writer=writer, step=step) File "/home/user/nlp/Magma/agents/robot_traj/utils/visualizer.py", line 151, in save_video video_writer.append_data(frame) File "/home/user/.conda/envs/magma/lib/python3.10/site-packages/imageio/v2.py", line 226, in append_data return self.instance.write(im, **self.write_args) File "/home/user/.conda/envs/magma/lib/python3.10/site-packages/imageio/plugins/pyav.py", line 674, in write self.init_video_stream(codec, fps=fps, pixel_format=out_pixel_format) File "/home/user/.conda/envs/magma/lib/python3.10/site-packages/imageio/plugins/pyav.py", line 886, in init_video_stream stream = self._container.add_stream(codec, fps) File "av/container/output.pyx", line 61, in av.container.output.OutputContainer.add_stream File "av/codec/codec.pyx", line 86, in av.codec.codec.Codec.__cinit__ TypeError: expected bytes, NoneType found
How to solve this problem? Thank you