![]() Select all (⌘+a), and then select File > Export Selected Images… > Expand Options > uncheck the Alpha checkbox > Choose (your destination folder)ĭone! All your images are now exported with the alpha channel stripped off. The way I got batch exporting to work was to select all my app icon assets in finder > right click > open (or open with preview)Īll of the assets will now appear in the same window. 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.
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