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iOS

Posted by Ravin Kohli
Ravin Kohli
3,367 Points

Undefined symbols for architecture x86_64

When i try to build the application after getting done with the ui and inserting managed objects video i get an error saying: Undefined symbols for architecture x86_64: "OBJC_CLASS$THDiaryEntry", referenced from: l_OBJC$CATEGORY_THDiaryEntry$_CoreDataProperties in THDiaryEntry+CoreDataProperties.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)

also when i create a subclass of NSManagedObject my xcode creates a THDiaryEntry+CoreDataProperties.h and .m files which is different from what is created in the video the code for the respective files is as follows

//THDiaryEntry+CoreDataProperties.m
#import "THDiaryEntry+CoreDataProperties.h"

@implementation THDiaryEntry (CoreDataProperties)

@dynamic body;
@dynamic date;
@dynamic imageData;
@dynamic location;
@dynamic mood;

extern NS_ENUM(int16_t, THDiaryEntryMood){
    THDiaryEntryMoodGood = 0, THDiaryEntryMoodAverage = 1,
    THDiaryEntryMoodBad = 2
};
@end

//THDiaryEntry+CoreDataProperties.h

#import "THDiaryEntry.h"

NS_ASSUME_NONNULL_BEGIN

@interface THDiaryEntry (CoreDataProperties)

@property (nullable, nonatomic, retain) NSString *body;
@property (nonatomic) NSTimeInterval date;
@property (nullable, nonatomic, retain) NSData *imageData;
@property (nullable, nonatomic, retain) NSString *location;
@property (nonatomic) int16_t mood;

@end

NS_ASSUME_NONNULL_END