xcode5 asset catalogs 由于图标尺寸错误导致编译问题解决[原创]

如下图，即使图片尺寸不规范，xcode5也可以正常预览(这里我提供的尺寸是57*57, 而需要的是120*120)

但编译运行失败，报的错是：

Images.xcassets: error: The app icon set named "AppIcon" did not have any applicable content. Images.xcassets:./AppIcon.appiconset/[iphone][60x60][2x]: warning: AppIcon.appiconset/Icon.png is 57x57 but should be 120x120.

1 2	Images.xcassets: error: The app icon set named "AppIcon" did not have any applicable content. Images.xcassets:./AppIcon.appiconset/[iphone][60x60][2x]: warning: AppIcon.appiconset/Icon.png is 57x57 but should be 120x120.

遇到这种错误需要按规范替换图片资源文件即可。

iOS7要求的图标尺寸与iOS6等老版本比较有些变化，包括iPhone和iPad，尺寸都有增加，各图标尺寸具体数值可参见官网的iOS App编程指南。