Missing app icon for bare workflow app

Please provide the following:

  1. SDK Version: 6.0.1
  2. Platforms(Android/iOS/web/all): IOS

I am creating a bare workflow app to my understanding because I have some custom code for a google sign-in button I needed to use. I am currently trying to upload to testflight, but I am getting an error that I am missing an app icon, even though I have specified it in app.json. To my understanding, there is something else I need to do to add an icon due to the fact that I am using a bare workflow, but I can’t figure it out, can someone help direct me here?