Not connecting to simulator SDSandbox v 20.5.16

[josiahcoad]

Hello, I am trying to run your code exactly as is (using your pretrained agent and vae) and just get :"Waiting for sim to start...if the simulation is running, press EXIT to go back to menu.". I also tried setting the export DONKEY_SIM_PATH environment variable but to no avail.

Code example

python enjoy.py --algo sac -vae vae-level-0-dim-32.pkl --exp-id 6 -n 2000

System Info
Describe the characteristic of your environment:

• Commit of your version of the repo: 89a3b2c
• GPU models and configuration: GeForce GTX 1070
• Python version: 3.7
• Tensorflow version: 1.13.1

[araffin]

Hello,
There is one important info that is missing: what simulator are you using?
And did you launch it before launching the script?

[josiahcoad]

Using donkey sim "SDSandbox v 20.5.16". I've tried several things:

1. launching sim before running script (without setting env var DONKEY_SIM_PATH)
2. not launching sim before running script (with setting env var DONKEY_SIM_PATH)
   Both of these result in the error mentioned above
3. launching sim before running script (with setting env var DONKEY_SIM_PATH) which results in thread errors due to conflicting processes

[araffin]

Using donkey sim "SDSandbox v 20.5.16". I've tried several things:

This is a newer version compared to the one tested. Did you try using the one from the README?

[araffin]

I've got an internal pytorch version working with "SDSandbox v 20.5.16" and SB3, I planned to open source it at some point.

In the meantime, you can take a look at https://github.com/tawnkramer/gym-donkeycar to see what have changed in the api of the simulator.
The logic is different: the simulator is the server instead of the client now.

[josiahcoad]

Oh I see, that's unfortunate. the linked sim in the README is just for linux (unless I were to build it myself). Looking forward to your next release!

[araffin]

You can also try older binaries from the release page: https://github.com/tawnkramer/gym-donkeycar/releases

September 2018 may work: https://github.com/tawnkramer/gym-donkeycar/releases/tag/v18.9

There are binaries for Linux, Mac and Windows.

[josiahcoad]

Well, I did get a different result. Now I get (after setting the env var DONKEY_SIM_PATH but without launching the sim first)

...
Waiting for sim to start...if the simulation is running, press EXIT to go back to the menu
Got a new client ('127.0.0.1', 58585)
Scene Selection Ready
Connection dropped
Waiting for sim to start...if the simulation is running, press EXIT to go back to the menu
...