There Was An Unhandled Exception Trying To Save Your Rom To Disk Best -

referenced in the message (found in the same folder as the randomizer) for more technical details like java.io.IOException or finding a clean base ROM [Bug] Issue by 'Randomize (Save)' #771 - GitHub

RetroArch uses a complex save system with savefiles and savestates directories. The error often appears when:

The unhandled exception when saving a ROM to disk stems from inadequate error handling around file I/O operations. While the issue does not crash the entire application, it disrupts user workflow and risks data loss. Implementing proper exception handling, user feedback, and pre-save validation will resolve the problem. referenced in the message (found in the same

When the exception occurs while trying to , the emulator was in the middle of writing data (your save file, save state, or temporary ROM data) to your hard drive or SSD.

It sounds simple, but this is the most common culprit. If you are randomizing larger modern titles like Ultra Sun , you might need at least on your drive. If you are randomizing larger modern titles like

If you are using a previously patched or "trimmed" ROM, it may cause an exception. Try using a completely unmodified, original ROM file.

Here’s a structured incident report regarding the error: “There was an unhandled exception trying to save your ROM to disk.” the application encountered an unhandled exception

While attempting to save a ROM file to disk, the application encountered an unhandled exception, preventing the write operation from completing. The error message displayed was: