Examples Don't work

[AdvanceXplorer]

Hi,

I am using Python 3.10.9 with gym = 0.21.0. When i try to run imitation-master\examples\quickstart.py, I get the following error:

Traceback (most recent call last):
File "C:\Users\advan\anaconda3\lib\site-packages\gym\envs\registration.py", line 158, in spec
return self.env_specs[id]
KeyError: 'seals/CartPole-v0'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "c:\Users\advan\OneDrive\Masaüstü\imitation-master\examples\quickstart.py", line 17, in
env = make_vec_env(
File "C:\Users\advan\anaconda3\lib\site-packages\imitation\util\util.py", line 107, in make_vec_env
spec = gym.spec(env_name)
File "C:\Users\advan\anaconda3\lib\site-packages\gym\envs\registration.py", line 239, in spec
return registry.spec(id)
File "C:\Users\advan\anaconda3\lib\site-packages\gym\envs\registration.py", line 185, in spec
raise error.DeprecatedEnv(
gym.error.DeprecatedEnv: Env seals/CartPole-v0 not found (valid versions include ['CartPole-v0', 'CartPole-v1']),

which is the same as:
https://imitation.readthedocs.io/_/downloads/en/stable/pdf/).readthedocs.io/_/downloads/en/stable/pdf/.

How can i fix this?

[nil123532]

same

[yl-wang996]

same

[Charles-Lim93]

Same here. It seems have problem with Seals..

[ernestum]

Hi, thanks for reaching out. We don't support gym any more. Try running with gymnasium. Also make sure you have at least seals version 0.2.1 installed.

Note also that I found a (unrelated) bug in the quickstart.py, that is addressed in #823. So until this is merged I recommend to try that branch.