I'm new with Pagekit and I'm french, so sorry for my bad english.
I try to create my own theme, and I compress the theme folder in a .zip archive.
But when I try to import it in the administration, I have this message "Impossible de charger le fichier json du paquet".
So I download a theme's archive from the Marketplace, I decompress it and I recompress the folder.
And when I try to import it in the administration, I have the same message ! Very strange.
So what is my beginner's Mistake ?
I work on Mac (Sierra 10.12.6), in localhost with MAMP 4.
Thank you for your help