First Settings in a your project info-list set key Icon

already inculdes gloss effects to YES Boolean value like below screen shot:

首先在plist文件里添加一个属性Icon already inculdes gloss effects，然后设置为YES

after try project Target settings tick the checkbox in

the summary tap

in the App

Icons section like below screen shot:

在target设置里把Prerendered打上对号就ok了

it is working for me!

Welcome in Advance!