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Key Error When Using Curriculum Learning

Discussion in 'ML-Agents' started by haoyang1995, Mar 10, 2020.

  1. haoyang1995

    haoyang1995

    Joined:
    Feb 19, 2020
    Posts:
    2
    unexpected.png
    Hello. I was getting unexpected termination because of key error in the middle of every training.
    This is my yaml file from curricula folder. I carefully compared its format with yaml written by others but found no clue.
    Any idea of what is causing this?
    Thanks so much!
    Screen Shot 2020-03-10 at 10.46.54 AM.png
     
    haoyang1995, Mar 10, 2020
    #1

  2. TreyK-47

    TreyK-47

    Unity Technologies

    Joined:
    Oct 22, 2019
    Posts:
    1,822
    We'll send this over to the team to review, @haoyang1995. Which version of C# and Python are you using?
     
    TreyK-47, Mar 11, 2020
    #2

  3. haoyang1995

    haoyang1995

    Joined:
    Feb 19, 2020
    Posts:
    2
    I feel so sorry for the late reply.

    I am using Python 3.7 and C# version 4.0.30319.42000(got from "Debug.Log(System.Environment.Version)").
    I somehow found a workaround using try except to catch and suppress the key error. It worked after catching and ignoring the error but I will be so thankful if you guys can review this issue.
     
    haoyang1995, Mar 16, 2020
    #3

  4. asad133

    asad133

    Joined:
    Apr 1, 2020
    Posts:
    22
    I have exactly the same issue. It does not happen on every run but is very frustrating since training can terminate at a late stage and waste so much computation. It happens when the agent lesson changes. Used Try, Except as a workaround
     
    Last edited: Apr 11, 2020
    asad133, Apr 9, 2020
    #4

  5. harpj

    harpj

    Unity Technologies

    Joined:
    Jun 20, 2017
    Posts:
    6
    Hi @haoyang1995 and @asad133 -- I apologize for the late reply on this issue, but it should be resolved in the latest version of ML-Agents (0.16.0 / 1.0.0).
     
    harpj, May 8, 2020
    #5