This can be the result of a merge and the unknown UUID is being discarded.

 pod install --verbose

出行的问题：

[!] `<PBXGroup name=`Libary` UUID=`8ABD404D1C0EE30800F47010`>` attempted to initialize an object with an unknown UUID. `46E6C1FD1CEC5B8400E4281E` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`Utility` UUID=`8A5508381C16ADDF00EEE347`>` attempted to initialize an object with an unknown UUID. `464B16E21CF8432400CF47DD` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`Controller` UUID=`8AE2BD021C0D3386002AD9F2`>` attempted to initialize an object with an unknown UUID. `DF8CF88D1CE0765C00254460` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`Controller` UUID=`8AE2BD021C0D3386002AD9F2`>` attempted to initialize an object with an unknown UUID. `DF8CF88E1CE0765C00254460` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`Controller` UUID=`8AE2BD021C0D3386002AD9F2`>` attempted to initialize an object with an unknown UUID. `DF8CF88F1CE0765C00254460` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`Controller` UUID=`8AE2BD051C0D344E002AD9F2`>` attempted to initialize an object with an unknown UUID. `DF2481F41CDC925400ACDA9E` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`Controller` UUID=`8AE2BD051C0D344E002AD9F2`>` attempted to initialize an object with an unknown UUID. `DF2481F51CDC925400ACDA9E` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`View` UUID=`8AE2BD081C0D346B002AD9F2`>` attempted to initialize an object with an unknown UUID. `46697ACB1CFD3A7E0061E443` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`View` UUID=`8AE2BD081C0D346B002AD9F2`>` attempted to initialize an object with an unknown UUID. `46697ACC1CFD3A7E0061E443` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`View` UUID=`8AE2BD081C0D346B002AD9F2`>` attempted to initialize an object with an unknown UUID. `46697ACD1CFD3A7E0061E443` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`Controller` UUID=`8AE2BD071C0D3462002AD9F2`>` attempted to initialize an object with an unknown UUID. `46CD51491CEEEDB80023EB4A` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`Controller` UUID=`8AE2BD071C0D3462002AD9F2`>` attempted to initialize an object with an unknown UUID. `46CD514A1CEEEDB80023EB4A` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`AboutMe` UUID=`8AE2BD0F1C0D35F2002AD9F2`>` attempted to initialize an object with an unknown UUID. `8A00F29A1CF30964000325FF` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`AboutMe` UUID=`8AE2BD0F1C0D35F2002AD9F2`>` attempted to initialize an object with an unknown UUID. `8A00F29B1CF30964000325FF` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`AboutMe` UUID=`8AE2BD0F1C0D35F2002AD9F2`>` attempted to initialize an object with an unknown UUID. `8A00F29C1CF30964000325FF` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`AboutMe` UUID=`8AE2BD0F1C0D35F2002AD9F2`>` attempted to initialize an object with an unknown UUID. `8A00F29D1CF30964000325FF` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`Supporting Files` path=`TextProject` UUID=`8AE2BCA51C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `DF442E2C1CFB3C3000B6A76E` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXGroup name=`Supporting Files` path=`TextProject` UUID=`8AE2BCA51C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `DF442E2A1CFB264900B6A76E` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXSourcesBuildPhase UUID=`8AE2BC9E1C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `46E6C1FC1CEC56C000E4281E` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXSourcesBuildPhase UUID=`8AE2BC9E1C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `46E6C1F51CEC56C000E4281E` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXSourcesBuildPhase UUID=`8AE2BC9E1C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `46E6C1F61CEC56C000E4281E` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXSourcesBuildPhase UUID=`8AE2BC9E1C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `46E6C1FA1CEC56C000E4281E` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXSourcesBuildPhase UUID=`8AE2BC9E1C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `46E6C1F91CEC56C000E4281E` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXSourcesBuildPhase UUID=`8AE2BC9E1C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `DF8CF8901CE0765C00254460` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXSourcesBuildPhase UUID=`8AE2BC9E1C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `46E6C1F81CEC56C000E4281E` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXSourcesBuildPhase UUID=`8AE2BC9E1C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `46CD514B1CEEEDB80023EB4A` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXSourcesBuildPhase UUID=`8AE2BC9E1C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `DF2481F61CDC925400ACDA9E` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXSourcesBuildPhase UUID=`8AE2BC9E1C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `464B16E31CF8432400CF47DD` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXSourcesBuildPhase UUID=`8AE2BC9E1C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `46697ACE1CFD3A7E0061E443` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXSourcesBuildPhase UUID=`8AE2BC9E1C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `46E6C1FB1CEC56C000E4281E` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXResourcesBuildPhase UUID=`8AE2BCA01C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `DF442E2B1CFB264900B6A76E` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXResourcesBuildPhase UUID=`8AE2BCA01C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `46E6C1F71CEC56C000E4281E` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXResourcesBuildPhase UUID=`8AE2BCA01C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `8A00F2A51CF31252000325FF` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXResourcesBuildPhase UUID=`8AE2BCA01C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `DF8CF8911CE0765C00254460` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXResourcesBuildPhase UUID=`8AE2BCA01C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `8A00F2A61CF31252000325FF` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXResourcesBuildPhase UUID=`8AE2BCA01C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `46697ACF1CFD3A7E0061E443` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXResourcesBuildPhase UUID=`8AE2BCA01C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `8A00F2A11CF30964000325FF` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXResourcesBuildPhase UUID=`8AE2BCA01C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `DF442E2D1CFB3C3000B6A76E` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXResourcesBuildPhase UUID=`8AE2BCA01C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `DF5666E91CCF1DEF006840A2` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXResourcesBuildPhase UUID=`8AE2BCA01C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `8A00F29F1CF30964000325FF` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXResourcesBuildPhase UUID=`8AE2BCA01C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `8A00F29E1CF30964000325FF` for attribute: `files`. This can be the result of a merge and  the unknown UUID is being discarded.

[!] `<PBXResourcesBuildPhase UUID=`8AE2BCA01C0C3794002AD9F2`>` attempted to initialize an object with an unknown UUID. `DF5666E81CCF1DEF006840A2` 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lib-xxx.a

2.退出xcode

3.在终端重新pod install