![]() Underneath More info, it showed:įound the solution above to use Preview to remove the alpha channel by exporting it with the Alpha checkbox unchecked, but figured a way to batch export them since I had 18 assets I needed to strip the alpha channel from. I confirmed that my app store icons did include the alpha channel by locating the asset in Finder and looking up its info (⌘+i). The App Store icon in the asset catalog in 'MyApp.app' can't be transparent nor contain an alpha channel." Just got the the following error when trying to upload my app to the iTunes app store:ĮRROR ITMS-90717: "Invalid App Store Icon. "Ĭonvert $i -background white -alpha remove -alpha off $i "Įcho "brew not installed, trying to install. # make sure to have imagemagick installed, see :Įcho "imagemagick not installed, trying to install. # make sure to have brew installed, see : # remove alpha channel from PNG images when App Store upload fails It uses brew to install imagemagick if not available, so I guess it will run only on Mac. I put Nikita Pushkar's very nice solution into a shell script that converts all iOS icons found in res/icon/ios:
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