The most common cause is simply that the file is missing from the software's subfolders.
Your file structure should look like this: PSX2PSP_v1.4.2/Files/BASE.PBP . 2. Obtain a Working BASE.PBP
If the error persists despite the file being in the correct place, your version of the software might be bugged. BASE.PBP - julianxhokaxhiu/iPoPS - GitHub psx2psp error cannot open base.pbp
Avoid running the program from your Desktop or "Downloads" folder. Move the entire PSX2PSP folder to the root of your drive (e.g., C:\PSX2PSP\ ) to ensure the file path is short and contains no special characters.
Sometimes the file is present, but the software cannot "see" it due to Windows restrictions or complex file paths. The most common cause is simply that the
You must place the BASE.PBP file directly into this Files folder.
Since it isn't always included, you may need to source it separately. Obtain a Working BASE
iPoPS/BASE. PBP at master · julianxhokaxhiu/iPoPS · GitHub.