Databases
StackOverflow2013
Postsdbo
POCoreData issue: -[NSManagedObject setValue:]: unrecognized selector sent to instance
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POCoreData issue: -[NSManagedObject setValue:]: unrecognized selector sent to instance
    primarykey
    data
    text
    <p>I just started with CoreData yesterday, and I'm going crazy :( I created a project that uses CoreData (ticked the box -use CoreData). Created the entities, and then created the NSManagedObject classes for all the entities (I suppose they create the 'setter' and 'getter' methods for the entities).</p> <p>Now, I #imported all these classes in my AppDeletegate and wrote this in my applicationDidFinishLaunching method:</p> <p>(Subscriptions is one of the Entities in the application)</p> <pre><code>NSManagedObjectContext *context = [self managedObjectContext]; Subscriptions *sbs = (Subscriptions *)[NSEntityDescription insertNewObjectForEntityForName:@"Subscriptions" inManagedObjectContext:context]; [sbs setTitle:@"OK"]; [sbs setType:@"Tag"]; [sbs setCode:@"cars"]; NSError *error = nil; if (![context save:&amp;error]) { NSLog(@"Couldn't create the subscription"); } </code></pre> <p>When I run this, I get this error</p> <blockquote> <p>[NSManagedObject setTitle:]: unrecognized selector sent to instance 0x6160550</p> </blockquote> <p>I have no idea why this is happening. Please Help!!! Thanks in advance to everyone!</p> <p><strong>Adding the header of Subscriptions</strong> <br />Subscriptions.h</p> <blockquote> <p>@interface Subscriptions : NSManagedObject { <br /> }<br /> @property (nonatomic, retain) NSString * Type;<br /> @property (nonatomic, retain) NSDecimalNumber * Read;<br /> @property (nonatomic, retain) NSString * Title;<br /> @property (nonatomic, retain) NSString * Code;<br /> @property (nonatomic, retain) NSDecimalNumber * New;<br /> @end</p> </blockquote> <p>I didn't change anything. It's just as Xcode created it.</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USOlsi
    1. USOlsi
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POCoreData issue: -[NSManagedObject setValue:]: unrecognized selector sent to instance
      1. USAxel
      1. VTFavorite
    2. VO
      singulars
      1. POCoreData issue: -[NSManagedObject setValue:]: unrecognized selector sent to instance
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POCoreData issue: -[NSManagedObject setValue:]: unrecognized selector sent to instance
      1. This table or related slice is empty.
      1. VTUpMod
    1. CODid you ever figure this out? I'm having a similar problem. Any message I send to my NSManagedObject subclass says "unrecognized selector".
      singulars
      1. POCoreData issue: -[NSManagedObject setValue:]: unrecognized selector sent to instance
      1. USbdmontz
    2. CO@bdmontz It's been a while, I don't really remember how I fixed it. Sorry.
      singulars
      1. POCoreData issue: -[NSManagedObject setValue:]: unrecognized selector sent to instance
      1. USOlsi
    3. CO@bdmontz (and anyone else stumbling across this problem). Check the answer from b123400. Helped me. I had forgotten about changing the class name in the data model in a refactoring of the entity class name.
      singulars
      1. POCoreData issue: -[NSManagedObject setValue:]: unrecognized selector sent to instance
      1. USPEZ
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload