To Save Your Rom To Disk | There Was An Unhandled Exception Trying

This error is rare on Android, but if it appears:

The most common cause. If your hard drive or SSD is full, the emulator cannot write the save file. Even a few megabytes of free space may not be enough if the emulator needs to write temporary files first. This error is rare on Android, but if it appears:

Flatpak sandboxing can cause permission issues. Use Flatseal to grant the emulator access to your save directory. The most common cause

Example for RetroArch Flatpak: