Actually I have this error, when I try to generate my app in XCode 12:
Failed to create provisioning profile. There are no devices registered in your account on the developer website. Plug in and select a device to have Xcode register it.
And the "provisioning profile" requires an iOS device, if I'm not wrong. I have not an iPhone/iPad this time, and (It appears) is it mandatory to create my "provisioning profile", before upload my apps in App Store. Is that so?
Thanks on advance