Undefined symbols for architecture arm64

Question

I am getting a Apple Mach-O Linker Error everytime I import a file from CocoaPods.

Undefined symbols for architecture arm64:
  \"_OBJC_CLASS_$_FBSession\", r         


        

Answer 1

I fixed mine by checking the selected implementation files in the target membership on the right side. This is useful especially in dealing with extensions i.e. custom keyboards.