As today, all sent applications must have a 120x120 application icon. You can simply add it to your kit. No need to add it to the list of icons.
Dear Developer,
We detected one or more problems with your recent "..." delivery. Your delivery was successful, but you may wish to fix the following problems with the next delivery: Invalid image - For iOS applications, the icons included in the binary feed must be in PNG format. If your application supports the iPhone family device, you should include square icons in the following sizes: 57 × 57 pixels and 120 × 120 pixels. If your application supports iPad devices, you must include square icons of the following sizes: 72 × 72 pixels, 76 × 76 pixels, and 152 × 152 pixels. For Mac OS X applications, the icons included in the binary feed must be in ICNS and should contain a 512 × 512 @ 2x square image. If you, for example, to update your binary for this application, you can reject this binary code on the Binary Data page in iTunes Connect. Note that rejecting your binary will remove your application from the viewing queue and the review process will begin from the very beginning when you re-binary.
Regards, App Store Team
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