implementing NSKeyedArchiver and Custom Objects Serialization in Objective-C
I'm trying to debug After trying multiple solutions online, I still can't figure this out. Quick question that's been bugging me - I've been banging my head against this for hours... I'm working with a question with serializing and deserializing a custom object using `NSKeyedArchiver` in Objective-C. My custom class implements `NSCoding`, and the serialization works fine, but when I try to deserialize, I get a `NSInvalidUnarchiveOperationException`. Here's the relevant code for my class: ```objective-c @interface MyCustomObject : NSObject <NSCoding> @property (nonatomic, strong) NSString *name; @property (nonatomic, assign) NSInteger age; - (instancetype)initWithCoder:(NSCoder *)coder; - (void)encodeWithCoder:(NSCoder *)coder; @end @implementation MyCustomObject - (instancetype)initWithCoder:(NSCoder *)coder { self = [super init]; if (self) { _name = [coder decodeObjectForKey:@"name"]; _age = [coder decodeIntegerForKey:@"age"]; } return self; } - (void)encodeWithCoder:(NSCoder *)coder { [coder encodeObject:self.name forKey:@"name"]; [coder encodeInteger:self.age forKey:@"age"]; } @end ``` When I try to unarchive my object like this: ```objective-c NSData *data = ...; // data from previous archiving MyCustomObject *object = [NSKeyedUnarchiver unarchiveObjectWithData:data]; ``` I get the following behavior in the console: ``` Terminating app due to uncaught exception 'NSInvalidUnarchiveOperationException', reason: 'Could not decode object of class "MyCustomObject"' ``` I've already checked that the class name is correctly spelled and the `NSKeyedArchiver` is running in the same context where the objects were archived. I've also made sure to implement both `initWithCoder:` and `encodeWithCoder:` correctly. My app is running on iOS 16.5, and I've tested it on both an actual device and simulator. Any insights on what I might be missing or if there are any specific configurations I should check? For context: I'm using Objective-C on Ubuntu. Thanks in advance! I recently upgraded to Objective-C 3.9. What are your experiences with this? I'd really appreciate any guidance on this.