There Was An Unhandled Exception Trying To Save Your Rom To Disk ^new^ Site

catch (Exception ex) when (ex is IOException or UnauthorizedAccessException)

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 catch (Exception ex) when (ex is IOException or

The error is a common issue with the Universal Pokemon Randomizer (UPR) , typically occurring when the software cannot write the randomized file due to file conflicts or system permissions . Common Causes and Fixes catch (Exception ex) when (ex is IOException or

or saving to a protected folder (like "Program Files") without administrator privileges. Storage Limitations : Large games like Pokémon Ultra Sun can require up to 6 GB of free space catch (Exception ex) when (ex is IOException or