pod install后出现: [!] `` attempted to initialize an object with an unknown UUID

[!] `<PBXResourcesBuildPhase UUID=`xxx`>` attempted to initialize an object with an unknown UUID. `0B6359431C33CA0200C80C5D` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

解决方法:

1.移除General->Linked Frameworks and libraries中的libPods.a

2.退出xcode

3.在终端重新pod install即可