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.
2018-01-24: All continuous control environments now use mujoco_py >= 1.50. Versions have been updated accordingly to -v2, e.g. HalfCheetah-v2. Performance should be similar (see https://github.com/openai/gym/pull/834) but there are likely some differences due to changes in MuJoCo.
So, if you're using a gym version from that date or later, you'll have to use
env = gym.make('Humanoid-v2')
instead of v1. If you really really specifically want version 1 (for reproducing previous experiments on that version for example), it looks like you'll have to install an older version of gym and mujoco.
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