LaunchScreen.storyboard: The document “(null)” requires Xcode 8.0 or later

項目Xcode8出來了,然後又裝了一個xcode7,但,就換Xcode7來打開工程,出現

LaunchScreen.storyboard: The document “(null)” requires Xcode  or later
           

用編輯器将Xib裡面的下面一句話删除掉才能打開：  右擊->Open As ->Source code

<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>

删除就好！！！