Issue with running learn2learn-master\examples\rl\maml_trpo.py

[ermengji]

Hi i have been learning meta-rl recently. But i met a problem! and i tired for several days,but still didn't solve it.If anyone can help me, i would be very grateful!!! Here are the issues that arise: python examples/rl/maml_trpo.py Gym has been unmaintained since 2022 and does not support NumPy 2.0 amongst other critical functionality. Please upgrade to Gymnasium, the maintained drop-in replacement of Gym, or contact the authors of your software and request that they upgrade. Users of this version of Gym should be able to simply replace 'import gym' with 'import gymnasium as gym' in the vast majority of cases. See the migration guide at https://gymnasium.farama.org/introduction/migration_guide/ for additional information. Traceback (most recent call last): File "D:\project\examples\rl\maml_trpo.py", line 228, in main() File "D:\project\examples\rl\maml_trpo.py", line 141, in main env = l2l.gym.AsyncVectorEnv([make_env for _ in range(num_workers)]) File "C:\Users\Administrator\conda\envs\meta_rl_env\lib\site-packages\learn2learn\gym\async_vec_env.py", line 25, in init super(AsyncVectorEnv, self).init(env_fns, queue=self.queue) File "C:\Users\Administrator\conda\envs\meta_rl_env\lib\site-packages\learn2learn\gym\envs\subproc_vec_env.py", line 62, in init self.workers = [EnvWorker(remote, env_fn, queue, self.lock) File "C:\Users\Administrator\conda\envs\meta_rl_env\lib\site-packages\learn2learn\gym\envs\subproc_vec_env.py", line 62, in self.workers = [EnvWorker(remote, env_fn, queue, self.lock) File "C:\Users\Administrator\conda\envs\meta_rl_env\lib\site-packages\learn2learn\gym\envs\subproc_vec_env.py", line 18, in init self.env = env_fn() File "D:\project\examples\rl\maml_trpo.py", line 137, in make_env env = ch.envs.ActionSpaceScaler(env) AttributeError: module 'cherry' has no attribute 'envs'

I've tried to replace several versions of Cherry, but have you solved the compatibility problem of this version? Is there any way to solve this problem without overhauling the code? If changing the code can solve it,it can also be solved.

I hope someone can answer it .Thank you very much !!!