An error message indicating that the firmware for RetroArch is missing may appear when attempting to launch the application. RetroArch is a frontend for emulators, which are software that allows users to play video games from older consoles on modern computers or devices. The firmware provides the necessary BIOS files and other data for the emulators to function correctly.
If the firmware is missing, it is typically necessary to download and install it manually. The specific steps involved may vary depending on the operating system and version of RetroArch being used. Once the firmware is installed, RetroArch should be able to launch and run emulators as expected.
