SDL_GameControllerDB on Ubuntu

[olegharput]

I am using ubuntu i wrote the same code as in
https://www.youtube.com/watch?v=EQL6HZm ... B&index=13

but it does not work(my output is "nil" not "true" using xbox360 controller). As i remember one or two years ago the same code worked on Windows with the same machine and probably with the same controller. Is it normal? What must i do?
Please help.

[Xii]

I'm not going to watch a video to see the code. Post it.

[olegharput]

I'm not going to watch a video to see the code. Post it.

I am sending you the all the code until that video but the main file is GamepadMgr.lua.
And the file gamecontrollerdb.txt which is downloaded from
https://github.com/gabomdq/SDL_GameControllerDB is in the assets folder.