Bug：TypeError: __init__() missing 2 required positional arguments: 'model_path' and 'frame_skip'

[haoruili699]

Hello，I am running learn2learn/gym/envs/mujoco/halfcheetah_forward_backward.py as a main function，and there is an error like this:

Traceback (most recent call last): File ".../learn2learn/gym/envs/mujoco/halfcheetah_forward_backward.py", line 112, in env = HalfCheetahForwardBackwardEnv() File ".../learn2learn/gym/envs/mujoco/halfcheetah_forward_backward.py", line 41, in init MetaEnv.init(self, task) File ".../learn2learn/gym/envs/meta_env.py", line 33, in init super(MetaEnv, self).init() TypeError: init() missing 2 required positional arguments: 'model_path' and 'frame_skip'

I am running on Ubuntu 18.04, python==3.8 gym==0.21.0 mujoco-py== 2.0.2.13 torch==1.11.0+cu113

I wonder how I can handle this error. Thank you for your reply!

[haoruili699]

I fix this error by using learn2learn==0.1.5. There may be some conflicts among the versions of mujopo-py, gym and learn2learn.