cocoapods [!] Oh no, an error oc

[!] Oh no, an error occurred.

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Looking for related issues on cocoapods/cocoapods...

 - RuntimeError - [Xcodeproj] Unknown object version.

   https://github.com/CocoaPods/CocoaPods/issues/7697 [closed] [22 comments]

   2 days ago

 - RuntimeError - [Xcodeproj] Unknown object version. 🌈

   https://github.com/CocoaPods/CocoaPods/issues/7712 [closed] [9 comments]

   07 May 2018

 - Unknown object version

   https://github.com/CocoaPods/CocoaPods/issues/7760 [closed] [1 comment]

   5 weeks ago

解决方法:

参考博客:https://blog.csdn.net/amj94j/article/details/80495666