`TypeError` from selecting Input Folder

[Avasam]

Steps:

1. Double click nsz.exe to open
2. Click "Select Input File/Folder"
3. Select my folder containing all my NSP backups. Note that this folder contains some NSP files directly (when I have a base game with no update or extra data) and some folders (base game + update, extra saves backups, etc).
4. See the following log in the console:

Error while adding E:\Users\Avasam\Documents\Backups & Mods\Switch\NSP Files to gamelist: cannot unpack non-iterable NoneType object
 Traceback (most recent call last):
   File "E:\Users\Avasam\Documents\Backups & Mods\Switch\nsz_v4.5.0_win64_portable\lib\site-packages\nsz\gui\GameList.py", line 128, in addFiles
     (titleIDExtracted, versionExtracted) = FileExistingChecks.ExtractTitleIDAndVersion(filepathStr)
 TypeError: cannot unpack non-iterable NoneType object

NSZ version 4.5.0

[nicoboss]

This means that the extraction of the TitleId/Version failed for some files in this folder. Maybe they are corrupted, are some strange files that have nothing to do with actual game dumps or your prod.keys is outdated.

I guess a nicer way to handle this case is to either add those files using an unknown TitleId/Version or don't add them and instead show a warning in the console for every file that got skipped. It is really unfortunate that the error message doesn’t show you for which file the TitleId/Version can’t be extracted.

[Avasam]

All of these are possible in my case.

• I don't think I have a bad dump, but a few months ago my Hard Drive had too many bad sectors and started corrupting some files (I don't remember my dumps being affected, but it's possible). Also data rot.
• Save files. Or something else unrelated I may have left in a folder by accident?
• I may have copied an outdated prod keys backup into .switch. I don't think so? But maybe 🤷

I agree at least a warning + skip might be a more graceful failure that gives a bit more information.

[Avasam]

It's the homebrew launcher making it fail.