Undefined symbols for architecture arm64
问题 I am getting a Apple Mach-O Linker Error everytime I import a file from CocoaPods. Undefined symbols for architecture arm64: \"_OBJC_CLASS_$_FBSession\", referenced from: someFile ld: symbol(s) not found for architecture arm64 I get about 12 of these, for the various Pods I use. I am trying to build for the iPhone 5S using XCode 5. I\'ve been trying various solutions here on SO, but haven\'t got any of them to work yet. How do I fix this Apple Mach-O Linker Error? Just found another warning