Universal Build never works. Always showing icon warnings.

Dear sirs,

Please, could you give to me a definitive tutorial about how to do a “Universal Build” ?

I have already tried several ways I found on google search, but until now I get the same error:

warning: iPad: Icon.png: icon dimensions (57 x 57) don’t meet the size requirements. The icon file must be 72x72 pixels, in .png format (-19014)

Please, I need your help.

Thank you so much,
Marcos Tito
mrctito@hotmail.com
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