EmulationStation not showing every games

[Pandasan]

Hello,
as the title said, Emulationstation is showing few of games but not every. Like not snes or nes.
So what I did so far:

• searching everywhere on the internet, no solution helped me.
• Fresh installation, from the last IMG.
• ROMs have good extension, not corrupted, unzipped
• Transfered from USB, I can see ROMs in the file manager
• Parse Gameslists Only to OFF
• reboot emulationstation and retropie several times

In home/pi/.emulationstation/gamelists/ only gb folder is having gamelist.xml but megadrive is listed in emulstation (no folder here)

I hav no solution, few hours I'm on it, I did flash again retropie, no change...

Thank you for your help !

[mitu]

@pandasan What's in the ES log file, at /home/pi/.emulationstation/es_log.txt ? Paste it on pastebin.com and show us the output.
Also, can you give a specific example of a ROM not working ?

[Pandasan]

Sorry no possiblity to past from retropie at the moment, but I get this following line for every system that is not displayed:

lvl1: Warning from theme "/etc/emulationstation/themes/carbon/arcade/theme.xml"
 (from included file "/etc/emulationstation/themes/carbon/arcade/../carbon.xml")
  could not find file ""

So if I understand... I need to update the theme ?

[mitu]

@pandasan Update it or download and switch to another theme, like Pixel or SNES Mini. Did you modify the theme's contents ?

[Pandasan]

@mitu So that was interesting ! Well, the theme had problem, fixed by changed to nes-mini theme (beautiful one !)
But problem was, from the USB transfer method, folder was generated like "SNES" but emulationstation need "snes"...

Thank you for your help !