我已经找到了这篇文章的解决方案，在这里我将解释它如何解决这个问题。

I have found out the solution to this post and here I am going to explain it how I could solve this issue.

1）从Images.Xcassets文件夹中删除所有应用程序图标，并将它们添加到主包中。如下图所示。

1) Remove all the app icons from the Images.Xcassets folder and add them into your main bundle. Shown in the figure below.

2）转到信息plist并添加图标文件（iOS 5）字典并在字符串下添加应用程序图标名称（名称为一旦你在你的应用程序中使用）。如下图所示。确保图像是png文件。你会完成这件事。谢谢

2) Go to info plist and add "Icon files(iOS 5)" dictionary and add the app icon names under the strings(name of the once you are using in your app). Its shown in the figure below. Make sure that the images are png files. And you will be done wit this.Thanks