Sorry, it's just an error in 0.2.23 version. Title is misleading, I forgot to change it. You have to select root AC folder, and then app will able to disable cars by moving them to content/cars-off.
Great idea and very nicely done! My only suggestion is that it would be great if the preview images matched the official AC ones more closely. If you could do that, it would be perfect! Thanks for making this.
It helps to fix name, tags and description, but you're right, name is stupid. But automatically fix some json errors sounds like an interesting feature. I'll try to add it later. Could you please send some examples of broken jsons?
(Damn it, I've accidentally chosen wrong button and use report instead of reply. I'm sorry.)
Looks like folder “skins” of some of your cars broken or something. Maybe it's missing, empty, protected from reading or there is a file instead of folder. Of course, program should working anyway, sorry. I'll fix it as soon as possible (but now I kind of remake everything from scratch, so it's gonna take some time). :)