Solder Api: Won't Recognize mod pack directory

[DeCartio]

I have the solder API working and linked with the Technic platform but when I go to create the modpack, it says "Make sure all the resources required exist before submitting a pack!" they are definitely in the right directory and have the 775 permission applied to the pictures. The image sizes are also correct (800x510 for the background, 180x110 for logo and 32x32 for the logo) and they are also named correctly. I can't see why it wont add the modpack

[sketaful]

And you've created a folder with the same name as the slug for the modpack you're trying to create and placed the resources folder inside there?