There Was An Unhandled Exception Trying To Save Your Rom To Disk [ Trusted Source ]

Instead, you are greeted by the titular antagonist:

Possible causes

: The randomizer requires adequate memory to process saves. If your system has restricted Java settings (e.g., _JAVA_OPTIONS set to 512M), you may need to delete that environment variable to allow the program to use more RAM. Instead, you are greeted by the titular antagonist:

Go to the tab and ensure your user account has "Full Control" permissions. 3. Disable Real-Time Antivirus Protection _JAVA_OPTIONS set to 512M)