Environment executable not responding

Hi,

I was having a first go at building an environment executable and interacting with it using the Python API by following the instructions here https://github.com/Unity-Technologies/ml-agents/blob/master/docs/Learning-Environment-Executable.md (replacing 3DBall with the environment example Basic). The executable I build works when double click on the file, however when I run

from mlagents_envs.environment import UnityEnvironment

env = UnityEnvironment(file_name=<env_name>)

from the command-line, it returns

Found path: /home/campus.ncl.ac.uk/b3024896/Projects/ml-agents/basictest.x86_64

but the application produces a not responding force quit or wait pop up. Any help much appreciated, see below for more details. Thanks

System and versions:
Linux Ubuntu 18.04
Unity 2019.4.4f1
mlagents, mlagents-envs, gym-unity 0.18.0
stable-baselines 2.10.0
python 3.6

Install process:
Created project directory
From here created pipenv with Python 3.6
From here ran

git clone --branch release_4 https://github.com/Unity-Technologies/ml-agents.git

Installed the 'com.unity.ml-agents' package with editor package manager
With pipenv active, installed mlagents and gym_unity with pip3 install

Executable build:
Opened Unity editor
Navigated to 'Assets/ML-Agents/Examples/Basic/Scenes/' and opened the scene
Ensured 'run in background' was checked in player settings
Couldn't find 'display resolution dialogue' option but googled and apparently it is set to disabled by default now
Went to build settings and selected 'PC, Mac & Linux Standalone' with development build selected



Just to add:
I looked at the log files at ~/.config/unity3d/CompanyName/ProductName/Player.log and I have multiple lines of the following at the end

Fallback handler could not load library /home/campus.ncl.ac.uk/b3024896/Projects/ml-agents/basictest_Data/Mono/libcoreclr.so

 

Yes that's great! Thank you

 

Any idea why I'm getting this syntax error?

>>> mlagents-learn /config/ppo/Basic.yaml --env=Basic --run-id=firstRun
File "<stdin>", line 1
SyntaxError: can't assign to operator

I've looked at the migration document outlining the format changes e.g. the move from trainer_config.yaml to example specific yaml files, I've looked at using the script upgrade_config.py but it returns an identical file so I think the format I have is up to date, I've tried taking the first line 'behavior:' out, I've tried uninstalling the PyPi installs and instead installing from the cloned repo. Can't figure it out.

 

Moving this discussion to https://forum.unity.com/threads/syn...perator-when-training-with-executable.942825/

 

Hello, I did env.reset() it is still stuck on the black screen. Please help me