MAUI AppIcon not created

Hi folks,

When trying to distribute my app with transporter, I'm stuck for 2 days on asset validation with the following error :

"Asset validation failed (90704) Missing app icon. Include a large app icon as a 1024 by 1024 pixel PNG in the asset catalog of apps built for iOS, iPadOS, or watchOS. Without this icon, apps can't be submitted for review...."

I tried many workarounds, switching to svg, then png, then svg again, create an asset group with many file sizes, go back to simpliest implementation...

I'm using Visual studio 17.9.2 (rollback from more recent version due to incompatibility with XCode), a macbook air with sonoma 14.4 and Xcode 15.3.

Has anyone had the same problem and found a solution ?