Got mlagents.envs.exception.UnityEnvironmentException

Hello! Thank you for this great new environment! I was trying to install it on Ubuntu 16.04 and encountered problem when I tried to make an environment. I downloaded the correct environment file, so I assume that I added it incorrectly? Could you help me fix this issue?

Here is what I did:

1. Setup conda environment (Python 3.6)
2. Install ml-agents v0.6.0
3. Install obstacle-tower-env
4. Download environment (https://storage.googleapis.com/obstacle-tower-build/v1/obstacletower_v1_linux.zip)
5. Unzip environment into ObstacleTower/
6. Run the following command:

>>> from obstacle_tower_env import ObstacleTowerEnv
>>> env = ObstacleTowerEnv('./ObstacleTower/obstacletower', retro=False)

Here is the full output:

Python 3.6.7 | packaged by conda-forge | (default, Nov 21 2018, 03:09:43)
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from obstacle_tower_env import ObstacleTowerEnv
>>> env = ObstacleTowerEnv('./ObstacleTower/obstacletower', retro=False)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/ryanlee/git/obstacle-tower-env/obstacle_tower_env.py", line 38, in __init__
    self._env = UnityEnvironment(environment_filename, worker_id, docker_training=docker_training)
  File "/home/ryanlee/git/ml-agents/ml-agents/mlagents/envs/environment.py", line 58, in __init__
    self.executable_launcher(file_name, docker_training, no_graphics)
  File "/home/ryanlee/git/ml-agents/ml-agents/mlagents/envs/environment.py", line 172, in executable_launcher
    .format(true_filename))
mlagents.envs.exception.UnityEnvironmentException: Couldn't launch the obstacletower environment. Provided filename does not match any environments.

Here is pip freeze:

absl-py==0.7.0
astor==0.7.1
atomicwrites==1.2.1
attrs==18.2.0
backcall==0.1.0
bleach==3.1.0
certifi==2018.11.29
chardet==3.0.4
cycler==0.10.0
decorator==4.3.2
defusedxml==0.5.0
docopt==0.6.2
entrypoints==0.3
future==0.17.1
gast==0.2.2
grpcio==1.11.1
gym==0.10.9
gym-unity==0.1.1
html5lib==0.9999999
idna==2.8
ipykernel==5.1.0
ipython==7.2.0
ipython-genutils==0.2.0
ipywidgets==7.4.2
jedi==0.13.2
Jinja2==2.10
jsonschema==3.0.0a3
jupyter==1.0.0
jupyter-client==5.2.4
jupyter-console==6.0.0
jupyter-core==4.4.0
kiwisolver==1.0.1
Markdown==3.0.1
MarkupSafe==1.1.0
matplotlib==3.0.2
mistune==0.8.4
-e git+https://github.com/Unity-Technologies/ml-agents.git@d3f9fd63043f1c82790d3fe35ee07dc5ed1232b9#egg=mlagents&subdirectory=ml-agents
more-itertools==5.0.0
nb-conda==2.2.1
nb-conda-kernels==2.2.0
nbconvert==5.4.0
nbformat==4.4.0
notebook==5.7.4
numpy==1.14.5
-e git+https://github.com/Unity-Technologies/obstacle-tower-env.git@8372165df1ef5678f814bc7425236cf0ea2a68ac#egg=obstacle_tower_env
pandocfilters==1.4.2
parso==0.3.2
pexpect==4.6.0
pickleshare==0.7.5
Pillow==5.2.0
pkginfo==1.4.2
pluggy==0.8.1
prometheus-client==0.5.0
prompt-toolkit==2.0.8
protobuf==3.6.1
ptyprocess==0.6.0
py==1.7.0
pyglet==1.3.2
Pygments==2.3.1
pyparsing==2.3.1
pyrsistent==0.14.9
pytest==3.10.1
python-dateutil==2.7.5
PyYAML==3.13
pyzmq==17.1.2
qtconsole==4.4.3
requests==2.21.0
scipy==1.2.0
Send2Trash==1.5.0
six==1.12.0
tensorboard==1.7.0
tensorflow==1.7.1
termcolor==1.1.0
terminado==0.8.1
testpath==0.4.2
tornado==5.1.1
traitlets==4.3.2
twine==1.11.0
urllib3==1.24.1
wcwidth==0.1.7
webencodings==0.5.1
Werkzeug==0.14.1
widgetsnbextension==3.4.2

Thank you for your help!

[awjuliani]

Hi all.

Please ensure that your working directory is the directory within which the ObstacleTower folder exists.

[harperj]

I’ve updated the build to include the proper extension – thanks for reporting this issue @seungjaeryanlee! I’ll close this issue now but feel free to reopen if needed.