I'm trying to build an app using flutter which runs fine on both the Android and iOS side locally, but I cannot submit my app to the store. When I try an 'archive' or a 'validation' I keep getting the error: Invalid large app icon. The large app icon in the asset catalog in “Runner.app” can’t be transparent or contain an alpha channel. For details, visit: https://developer.apple.com/design/human-interface-guidelines/app-icons. (ID: 06a51b84-cfc5-43be-94c3-3ae02e5d1229) I've tried: Making sure my dependencies are up-to-date putting remove_alpha_ios: true in flutter_icons Going icon-by-icon and making sure it does not have an "alpha channel" (opening from Finder and exporting without "Alpha channel" checked) Making sure the icon is not rounded Cleaning my build environment (feels like 100s of times now) JPG icons instead of PNG I don't know what else to do. Nothing is working and I've now wasted multiple days on this problem. I'm new to XCode in general and have never run into something like this before, so if you have any suggestions please treat me like I'm new. I've tried reading the logs that appear when I click "show logs" but there's a lot in there and most of what I have checked into doesn't seem helpful. Is it possible I've missed an Icon somewhere? If so, how can I tell which one it was? IS this even an Icon problem? How do I know? Where do I go from here? Is there more information I can provide that will help? If so, what, and where is it located?