Cannot decode object of class Employee for key (NS.object.0); the class may be defined in source code or a library that is not linked
<p>Im trying to pass an array of 'Employee' objects iPhone to Apple Watch by serializing the array :</p>

<pre><code>NSData *encodedObject = [NSKeyedArchiver archivedDataWithRootObject:employees];
</code></pre>

<p>and unserializing it as on the Watch side:</p>

<pre><code>NSMutableArray *employees = [NSKeyedUnarchiver unarchiveObjectWithData:encodedObject];
</code></pre>

<p>This is the 'Employee' class:</p>

<pre><code>@interface Employee : NSManagedObject
@property (nonatomic, retain) NSNumber * employeeID;
@property (nonatomic, retain) NSString * name;
@property (nonatomic, retain) NSNumber * age;
@property (nonatomic, retain) NSString * address;
@property (nonatomic, retain) NSString * designation;
@property (nonatomic, retain) NSString * teamName;
@property (nonatomic, retain) NSString * gender;
@property (nonatomic, retain) NSNumber * dateOfJoining;
@end
</code></pre>

<p>Do I have to do any changes on the Watch side to fix this error?</p>