FIX :ERROR ITMS-90717: "INVALID APP STORE ICON. THE APP STORE ICON IN THE ASSET CATALOG IN '_____' CAN'T BE TRANSPARENT NOR CONTAIN AN ALPHA CHANNEL

 

When you upload the archive to the App Store using the tool from Xcode, you may get the following error:

1	ERROR ITMS-90717: "Invalid App Store Icon. The App Store Icon in the asset catalog in '_____.app' can't be transparent nor contain an alpha channel.

Reason: Your Icon image has feature: Alpha

Solution: Make a PNG without an alpha channel.

How to fix it:

Open file: Assets.xcassets From Runner > Runner > Assets.xcassets
1. Select the AppIcon item, scroll down to the bottom to select the image size 1024 pt.

2.Right-click : Open in Finder
3. Double Click on that photo to open
4. Select File > Export...
5. In the Export screen: Untick Alpha, save the image file 

6. Replace the entire App icon with that
Image 

7. Archive and Distribute => OK