Dharshan

> Can you provide more details, like screen snapshots of your errors? Thank you for your reply. Sure, I ran this code { [DI-engine](https://github.com/opendilab/DI-engine)/[dizoo](https://github.com/opendilab/DI-engine/tree/main/dizoo)/[gym_hybrid](https://github.com/opendilab/DI-engine/tree/main/dizoo/gym_hybrid)/[envs](https://github.com/opendilab/DI-engine/tree/main/dizoo/gym_hybrid/envs)/gym_hybrid_env.py} in jupyter notebook but i got...

> This error could be a repeat register error, which is caused by the repeat import of `GymHybridEnv`. > > For simplicity, you can modify line 14 like `@ENV_REGISTRY.register('gym_hybrid', force_overwrite=True)`...

Why this error occurs? Is that because of python 3?? I ran the [DI-engine](https://github.com/opendilab/DI-engine)/[dizoo](https://github.com/opendilab/DI-engine/tree/main/dizoo)/[gym_hybrid](https://github.com/opendilab/DI-engine/tree/main/dizoo/gym_hybrid)/[config](https://github.com/opendilab/DI-engine/tree/main/dizoo/gym_hybrid/config)/gym_hybrid_ddpg_config.py code 

please let me know, why am i getting this error when i run the [DI-engine](https://github.com/opendilab/DI-engine)/[dizoo](https://github.com/opendilab/DI-engine/tree/main/dizoo)/[gym_hybrid](https://github.com/opendilab/DI-engine/tree/main/dizoo/gym_hybrid)/[entry](https://github.com/opendilab/DI-engine/tree/main/dizoo/gym_hybrid/entry)/gym_hybrid_ddpg_eval.py code ?? 

Also please let me know, why am i getting this error when i run the [DI-engine](https://github.com/opendilab/DI-engine)/[dizoo](https://github.com/opendilab/DI-engine/tree/main/dizoo)/[gym_hybrid](https://github.com/opendilab/DI-engine/tree/main/dizoo/gym_hybrid)/[entry](https://github.com/opendilab/DI-engine/tree/main/dizoo/gym_hybrid/entry)/gym_hybrid_ddpg_main.py code?? 

> For more detailed discussion, you can join our slack channel and some message to us. The replay path is not activated in the ddpg config, ?? [DI-engine](https://github.com/opendilab/DI-engine)/[dizoo](https://github.com/opendilab/DI-engine/tree/main/dizoo)/[gym_hybrid](https://github.com/opendilab/DI-engine/tree/main/dizoo/gym_hybrid)/[config](https://github.com/opendilab/DI-engine/tree/main/dizoo/gym_hybrid/config)/gym_hybrid_ddpg_config.py 

Previously I used Jupiter notebook which causes the chrome to crash . However , once I downloaded the desktop version of Jupiter lab, I was able to train my model...

Hi Did you solve this problem?

Did you implement dhruvramani's project in your server? I am getting error when i run the render.py code The error is - BuildError werkzeug.routing.exceptions.BuildError: Could not build url for endpoint...

It worked  Do you know why the cartpole's color is different than the actual one?