ERROR: "Connection reset by peer"

[sunchipsster1]

Hello! Thank you so much for creating this awesome resource for the community, it has been a really great help!

I am encountering a problem: I am using the main.py RL script with the Hallway maze, and it seems to work well. However, trying any other maze, for example -- 4 rooms, yields the following error: (see attached image). Does anyone know the source of this error and how to fix it?

Thank you!

[maximecb]

Hi @sunchipsster1 !

There is one other similar issue here: https://github.com/maximecb/gym-miniworld/issues/16

It's also possible something might be producing an error and you're not seeing the error message because it happens in another process that doesn't have access to print on the console. We'd have to find out what that error message is.

Does the error happen if you set the number of processes to 1 for the RL script? Does it print a different error message? Are you able to run the 4 rooms environment without issue using the manual_control.py script?

[sunchipsster1]

Hi @maximecb ! Thank you so much for your kind reply, and the suggestions! I have tried your suggestions, and the results are as follows: with Hallway, it is able to be successfully trained, even when num-processes is 1, or > 1 (e.g. 16) (1st attached image). I tried to run Fourrooms in manual_control, and it works (2nd attached image). However, when I ran training, it received an error (3rd image attached).

In a peculiar observation, I created a "copy" of the hallway.py file called hallwayCopy.py None of the internal parameters of the room were changed, only the name of the file (4th attached image). However, when I ran this in training, this too received an error (5th attached image).

Do you know where the error might lay? Thank you again for all your kind help!

[maximecb]

I think you just have the name of the environments wrong. The capitalization matters, so it would be FourRooms-v0, and hallwayCopy-v0. It has to exactly match the class name.

On Sun, 12 Apr 2020 at 11:31, sunchipsster1 notifications@github.com wrote:

Hi @maximecb https://github.com/maximecb ! Thank you so much for your kind reply, and the suggestions! I have tried your suggestions, and the results are as follows: with Hallway, it is able to be successfully trained, even when num-processes is 1, or > 1 (e.g. 16) (1st attached image). I tried to run Fourrooms in manual_control, and it works (2nd attached image). However, when I ran training, it received an error (3rd image attached).

In a peculiar observation, I created a "copy" of the hallway.py file called hallwayCopy.py None of the internal parameters of the room were changed, only the name of the file (4th attached image). However, when I ran this in training, this too received an error (5th attached image).

Do you know where the error might lay? Thank you again for all your kind help!

[image: image] https://user-images.githubusercontent.com/56416888/79072673-4318ab80-7cb0-11ea-85e8-fed516a0775f.png

[image: image] https://user-images.githubusercontent.com/56416888/79072534-80c90480-7caf-11ea-895e-baf1d7709854.png

[image: image] https://user-images.githubusercontent.com/56416888/79072754-bde1c680-7cb0-11ea-9090-01d59d480c62.png

[image: image] https://user-images.githubusercontent.com/56416888/79072362-a73a7000-7cae-11ea-92f2-2017f629dbc4.png

[image: image] https://user-images.githubusercontent.com/56416888/79072636-1b294800-7cb0-11ea-8156-40c0aca1b7a6.png

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/maximecb/gym-miniworld/issues/22#issuecomment-612633913, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAFOIJTMHQMYT3GA6BBSGODRMHNGXANCNFSM4MGI7K4A .

[sunchipsster1]

Hi @maximecb indeed, when I corrected the FourRooms-v0 as you instructed, it now works, thank you!

However, the hallwayCopy-v0 still does not, and I hope to understand why because I would like to be able to create new environments :) I was hoping you might be able to help me on this issue? Thank you again for everything and apologies if the solution ends up being some extremely trivial issue!

I have attached the names (capitalized appropriately, I hope, for the class name) of the relevant files to this email. I have attached the error which results.

[maximecb]

Yes, you should import the Python file in __init__.py. Then, when launching the environment, the name you use should match the class name (not the Python script name). Your example looks correct.

[sunchipsster1]

Hi Maxime, it now works :) For others who might naively encounter this -- after creating a new envs file, rerunning pip3 install -e . seems necessary. Thank you so much!

[maximecb]

Glad it's working :)