Retropie-setup: Virtual gamepad not working on RPi3 with RetroPie 4.0.2

[leoheck]

Hi, wiki said virtual gamepad may only work "well" with RPi2. I have a RPi3 Model B, using RetroPie 4.0.2 but it is not working. I installed it from experimental menu. Probably it's an issue with virtualgamepad.sh script. Someone has tested it with RPi3? Someone has some tips to help me solve that?

[joolswills]

You have posted on the forum (https://retropie.org.uk/forum/topic/4591/virtual-gamepad-not-working) so you should wait for a reply there first. As when opening an issue it says

This issue tracker is NOT for Help / Support - Please use the RetroPie forum - https://retropie.org.uk/forum/

Even if you think you have a bug please post to the forum first, as many "issues" can be solved with configuration changes.

For ideas and enhancements, please also post to the forum first, to see if it is something we would consider and to see if other users would find it useful.

Please remove this text before posting.

It's also quite possible it is broken as I don't think many people use it and I've not tried it for some time.

[leoheck]

Yeah, I posted the issue here because I am thinking something is broken and not only misconfigured. However, I agree with you @joolswills that I should wait for more to have some answers there but someone has posted the same issue 22 days ago which I thought it was a good time window to post it here too. But I do not want to make any troubles. Should I close this issue or can I leave it open for now?

[joolswills]

You can leave it open for now until I've had a chance to take a look. Some stuff in experimental is broken btw, or may not work properly.

[leoheck]

• Considering Virtual Gamepad (installed from experimental menu)
  Executing it manually as its README.md states

sudo node main.js

It gives me:

module.js:339
    throw err;

Error: Cannot find module 'struct'
   .... 

• Considering Mobile Gamepad (installed from experimental menu), it shows me many ERRORs during compilation.

I have to improve my access to the board to copy logs to post here.

[leoheck]

Just installed Virtual Gamepad from its git repository and the server is working now I have the gamepad on my android. I still have to see if it works to control the retropie.

[joolswills]

I haven't tested it yet, but I saw a typo which was introduced (by me) a little while ago. I have fixed it now, so if you update retropie-setup you can test it out (Although if you have installed it manually it could interfere)

[leoheck]

The manually installed version is working. I noticed that the manual installation have the node_modules folder that your install does not have. This folder has the missing modules I post before.

This modification you made can be seen by the install/update menu right now? If yes, I will try to run it again to see what happens.

[joolswills]

if you update retropie-setup yes. The reason the node_modules were missing was because of the typo meaning some code wasn't called.

[leoheck]

:), nice so I will upgrade retropie-script to see what happens!

[leoheck]

Still have errors, however the node server has started and it is working.

[joolswills]

Logs are stored in RetroPie-Setup/logs (gzipped)

I don't think you need to worry about those errors if the service started. However I am making some improvements to the module currently.

[leoheck]

Thanks and I can help you if you wish. It is my first time using an RPi ever :). So, should I have to close the issue now or we can leave it opened until we remove all the strange errors?

[joolswills]

If everything is working for you we can close it. thanks.