OSError while running rex-gym policy

[arcgolatkar]

i have followed the readme and installed rex-gym in a conda environment. While running "rex-gym policy --env gallop" i am getting an OSError: Cannot resume an existing run since the logging directory does not contain a configuration file.

Please help me resolve the error.

[nicrusso7]

Hi, I see you are running it on a Windows machine, may I ask how are you installing the lib? could you try to install it from source? I just realized I didn't updated the latest lib version on PyPI (I'll do it with the next release - almost there), sorry about that.

[arcgolatkar]

I have installed it from source. Then tried using pypi on another environment . But both seem to give the same error.

[nicrusso7]

Thanks for pointing this out, I'll test the library on a Windows machine.

[arcgolatkar]

Here the problem was 'policy_dir' was pointing to 'd:\anacondar\envs\rex\rex_gym/policies/galloping/balanced' but there was no folder named 'rex_gym' in 'd:\anaconda\envs\rex' . So I manually copied the rex_gym folder there and it solved my problem. Will be glad to know if it's a environment problem or any step that i missed or anything else. Also , thanks for sharing the amazing work .

[nicrusso7]

Oh I see, thanks. weird. The setup.py should copy the lib data into the env.. I think there is also an issue with the path (\ while instead of /). I'll fix this. Thanks!

[nicrusso7]

This bug was fixed with 0.2.7. Feel free to reopen this issue if doesn't work for you.

[DPR00]

I comment this in case someone would have the same problem: I am using Ubuntu 18.04, 'venv' to create the environment, and the version 0.2.7. And I had the same problem that @arcgolatkar, but to solve the problem I copied manually the 'rex_gym' folder into '/path-to-env/rex/lib/python3.7/dist-packages'. In case you don't have the 'dist-packages', then you can create it by yourself. Anyways, if you are using another OS or Linux distro you can enter to the 'policy_player.py' file, located in 'playground' folder, and print the 'policy_dir' to see where you have to copy the 'rex_gym' folder. However, I think it should be a general solution for this.

Congrats @nicrusso7 for the project, it is an amazing tool and great papers :)

[datamomo]

If anyone is still struggling with this issue: Based on the previous answer I have something to add/ a slightly different way: I am using Ubuntu 20.04. and as well 'venv' to create the environment. Version 0.2.7 as well. I faced the same problem as previously mentioned. For me the solution was changing just an index in the 'policy_player.py' script, located in 'playground' folder. So in line 15 I changed the '-1' to '0'. The problem was that site.getsitepackages() returns multiple paths and for me the wrong one was selected. The path selected was '/path-to-env/rex/lib/python3.7/dist-packages', but on the system I am running it has to be '/path-to-env/rex/lib/python3.7/site-packages'. This can be accomplished by just changing the index as mentioned. Hope this may help someone..

Thanks for publishing this great project! :)