ROMsets Missing Files

[Saus312]

Rasberry Pi 4
Offical PSU 5.1v, 3A power supply
Fresh install of Retropie 4/400

Sorry, I am very new to this project and am learning as I go.
Install of Retropie went well. Installed ROMs from USB and I keep getting a message that the file wont run. I have tried numerous ROMs for nes and mame with similar results.

"This game is known but one of your romsets is missing files for THIS VERSION of FBN. ROMS with name neocd.bin and CRC 0xdf9de490 is missing. ROM with name 000-lo.lo and CRC 0x5a86cff2 is missing."

I greatly appreciate your help!

[sleve_mcdichael]

@Saus312 it looks like you're trying to play an arcade or neogeo game using FBNeo. First make sure you have thoroughly read the arcade documentation:

Arcade emulation requires a different approach than console emulation. Please read this entire page before beginning your RetroPie arcade emulation project.

https://retropie.org.uk/docs/Arcade/

https://retropie.org.uk/docs/FinalBurn-Neo/

It looks like you might be missing a BIOS file -- we are not able to help you source this file, but we can direct you to look for "full non-merged" rom versions, which should include all the necessary files including any BIOS required.

Edit: I see where you said:

ROMs for nes and mame with similar results.

...this doesn't seem right, why would a NES rom be using FBNeo?