ios - how to change xcode app icon? -

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i have been trying change apps icon, cannot seem it. have been following example: https://developer.apple.com/library/ios/recipes/xcode_help-image_catalog-1.0/chapters/addinglaunchimagestoanassetcatalog.html

but no matter do, cannot icon change. whenever add image, gives me error saying incorrect size, when change size of image xcode tells me new size.

is there isn't in example missing?

this is way, should this:

enter image description here

for example:

  • 40pt - 120:120 @3x, 80:80 @2x , 40:40 @1x
  • for artworks 512:512 @1x , 1024:1024 @2x

be attentive icon sizes, , ok :)


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