Gym: How to solve environment error in open-ai-gym?

[avitheavi]

I am using gym version - '0.9.7', and mujoco_py version 1.50.1.41, Python 3.6.1 |Anaconda 4.4.0, installed on a mac.

When trying:

import gym
env = gym.make('Humanoid-v1')

I am getting the following error:

Traceback (most recent call last):
    File "/Users/usr/gym/gym/envs/registration.py", line 139, in spec
    return self.env_specs[id]
KeyError: 'Humanoid-v1'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/usr/gym/gym/envs/registration.py", line 163, in make
    return registry.make(id)
  File "/Users/usr/gym/gym/envs/registration.py", line 118, in make
    spec = self.spec(id)
  File "/Users/usr/gym/gym/envs/registration.py", line 147, in spec
    raise error.DeprecatedEnv('Env {} not found (valid versions include {})'.format(id, matching_envs))
gym.error.DeprecatedEnv: Env Humanoid-v1 not found (valid versions include ['Humanoid-v2'])

I have tried looking for solutions online with no success.

[Sicelukwanda]

It says you should try:

import gym
env = gym.make('Humanoid-v2')

[christopherhesse]

Thanks for answering this @Sicelukwanda!

[sabiinsearch]

Thanks for the hint ...
same problem using Taxi-v2...
but i tried and replaced with v3 and it compiled without errror

[Adeiltoo]

thank you so much (sabiinsearch) I got it! :from Brasil