Undefined symbols for architecture x86_64:
"_OBJCCLASS$_DDLog", referenced from:
objc-class-ref in MagicalRecord+ErrorHandling.o
objc-class-ref in NSManagedObject+MagicalDataImport.o
objc-class-ref in NSManagedObject+MagicalRecord.o
objc-class-ref in NSManagedObjectContext+MagicalObserving.o
objc-class-ref in NSManagedObjectContext+MagicalRecord.o
objc-class-ref in NSManagedObjectContext+MagicalSaves.o
objc-class-ref in NSObject+MagicalDataImport.o
...
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Undefined symbols for architecture x86_64: "_OBJCCLASS$_DDLog", referenced from: objc-class-ref in MagicalRecord+ErrorHandling.o objc-class-ref in NSManagedObject+MagicalDataImport.o objc-class-ref in NSManagedObject+MagicalRecord.o objc-class-ref in NSManagedObjectContext+MagicalObserving.o objc-class-ref in NSManagedObjectContext+MagicalRecord.o objc-class-ref in NSManagedObjectContext+MagicalSaves.o objc-class-ref in NSObject+MagicalDataImport.o ... ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)