Hi Austin, not sure if it is linked to your issue, but when I got errors in the Make It Native app, it was because of a setting on my laptop. When I initially connected to the WiFi with my computer, I chose not to have it discoverable by other devices. The mobile phone and the computer couldn't see each other. Changing that setting on my computer, by going to the settings of the connection and changing the network profile from public to private, solved the problem.
Will be interested to know from community if this worked on anyone's iPhone?
I issued the same error immediately after scanning the QR code. i changed the port in the project settings tab, from 8083 to 8080 and it worked, you can try this from Settings → Configurations → Edit the default → Server → Runtime port 8080 (instead of 8083)