when i launch retropie i arrived on emulation sation i go on MAME and i choose my game but all game don’t work.

the error is : error required files are missing the game cannot be run.
i have no error it’s black screen and after it’s the terminal with command line and after i return on emulationstation
exactly in the terminak is :

[terminal]
performance
Powering on HDMI with explicit settings (CEA mode 4)
Powering on HDMI with preferred settings
ondemand
[/terminal]

when i launch mame from directory i have “ERROR : No avaible Game found “