I’ve not so much time now, but the files are not automatically created in the fcm plugin.
i get this:
Build Error: Error: Sandbox Exec Error: [ Error: cordova-plugin-fcm: You have installed platform android but file 'google-services.json' was not found in your Cordova project root folder.
I think the plugin automatically puts them in the right place, once they are in the root folder.
I also tried uploading a file. This might have worked since i got no error. Am i supposed to see it in the file structure? Or is it always hidden?