ipad coredataエラー

Question

幸せな祝日！そう 、イムは、今私はテーブルでのViewControllerに示す情報を持っていますが、私は最初から呼び出された第二のViewControllerでテーブルを置いたときに、私もコードはかかわら>

entityForName: could not locate an NSManagedObjectModel for entity name 'Contacts'' 

を入手！coredataに取り組んで前に述べたように（一見で）働いていましたが、私は何をしますか？ ありがとうございました！

小さなテストプロジェクトは Hereです。プロジェクトは連絡先（SQLiteマネージャで確認済み）を保存しますが、別のビューでテーブル内の連絡先をチェックするとクラッシュします。 UIViewController内の表には、コードを作業が、これからまだメインビューにここに感謝

コード、（show.h、ビューはメインビューからロード...）

#import <UIKit/UIKit.h> 
@interface ShowViewController : UIViewController 
<UITableViewDelegate, UITableViewDataSource, NSFetchedResultsControllerDelegate> 
{ 
NSFetchedResultsController *_fetchedResultsController; 
NSManagedObjectContext *_context; 

UITableView *tableView;} 

@property (nonatomic, retain) NSFetchedResultsController *fetchedResultsController; 
@property (nonatomic, retain) NSManagedObjectContext *context; 
@property (nonatomic, retain) IBOutlet UITableView *tableView; 

-(IBAction) btnStart:(id) sender; 
@end 

、XIBと呼ばれています

（ショーメ）

#import "ShowViewController.h" 
#import "Contacts.h" 

@implementation ShowViewController 
@synthesize context = _context; 
@synthesize fetchedResultsController = _fetchedResultsController; 
@synthesize tableView; 

-(IBAction) btnStart:(id) sender{ 
initWithNibName:@"StartViewController" bundle:nil]; 
[UIView beginAnimations:@"flipping view" context:nil]; 
[UIView setAnimationDuration:1]; 
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn]; 
[UIView setAnimationTransition: UIViewAnimationTransitionCurlUp 
         forView:self.view.superview cache:YES]; 

[self.view removeFromSuperview];  
[UIView commitAnimations]; 

} 

- (NSFetchedResultsController *)fetchedResultsController { 

if (_fetchedResultsController != nil) { 
    return _fetchedResultsController; 
} 

NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; 
NSEntityDescription *entity = [NSEntityDescription entityForName:@"Contacts" inManagedObjectContext:_context]; 
[fetchRequest setEntity:entity]; 

//NSSortDescriptor *sort = [[NSSortDescriptor alloc] initWithKey:@"details.closeDate" ascending:NO]; 
//[fetchRequest setSortDescriptors:[NSArray arrayWithObject:sort]]; 

[fetchRequest setFetchBatchSize:20]; 

NSFetchedResultsController *theFetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:_context sectionNameKeyPath:nil cacheName:@"Root"]; 
self.fetchedResultsController = theFetchedResultsController; 
_fetchedResultsController.delegate = self; 

[fetchRequest release]; 
[theFetchedResultsController release]; 

return _fetchedResultsController;  

} 


- (void)viewDidLoad { 
[super viewDidLoad]; 

/*array = [[NSMutableArray alloc] init]; 
[array addObject:@"Sports"]; 
[array addObject:@"Entertainment"]; 
[array addObject:@"Art"]; 
[array addObject:@"Technology"];*/ 
NSError *error; 
if (![[self fetchedResultsController] performFetch:&error]) { 
    // Update to handle the error appropriately. 
    NSLog(@"Unresolved error %@, %@", error, [error userInfo]); 
    exit(-1); // Fail 
} 

    } 


    - (void)didReceiveMemoryWarning { 
// Releases the view if it doesn't have a superview. 
[super didReceiveMemoryWarning]; 

// Release any cached data, images, etc that aren't in use. 
} 


- (void)viewDidUnload { 
self.fetchedResultsController = nil; 
[super viewDidUnload]; 
// Release any retained subviews of the main view. 
// e.g. self.myOutlet = nil; 
} 



- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { 
return 1; 
} 




- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { 

id <NSFetchedResultsSectionInfo> sectionInfo = [[_fetchedResultsController sections] objectAtIndex:section]; 
return [sectionInfo numberOfObjects]; 

//return [array count]; 
//return [[fetchedResultsController sections] count]; 
} 



- (void)configureCell:(UITableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath { 

Contacts *info = [_fetchedResultsController objectAtIndexPath:indexPath]; 
cell.textLabel.text = info.name; 
//cell.detailTextLabel.text = [NSString stringWithFormat:@"%@, %@", info.city, info.state]; 

    } 


//---insert individual row into the table view--- 

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath { 

static NSString *CellIdentifier = @"Cell"; 
//---try to get a reusable cell--- 

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 



//---create new cell if no reusable cell is available--- 

if (cell == nil) { 

    cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; 

} 
[self configureCell:cell atIndexPath:indexPath]; 

    return cell; 

    } 

    - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { 

[tableView deselectRowAtIndexPath:indexPath animated:YES]; 



    } 

    - (BOOL)shouldAutorotateToInterfaceOrientation: (UIInterfaceOrientation)interfaceOrientation { 
// Overriden to allow any orientation. 
return YES; 
} 




- (void)dealloc { 
self.fetchedResultsController = nil; 
self.context = nil; 
[super dealloc]; 
} 


#pragma mark NSFetchedResultsControllerDelegate methods 

    - (void)controllerWillChangeContent:(NSFetchedResultsController *)controller { 
// The fetch controller is about to start sending change notifications, so prepare the table view for updates. 
[self.tableView beginUpdates]; 
} 


- (void)controller:(NSFetchedResultsController *)controller didChangeObject:(id)anObject atIndexPath:(NSIndexPath *)indexPath forChangeType: (NSFetchedResultsChangeType)type newIndexPath:(NSIndexPath *)newIndexPath { 

UITableView *tableView = self.tableView; 

switch(type) { 

    case NSFetchedResultsChangeInsert: 
     [tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath] withRowAnimation:UITableViewRowAnimationFade]; 
     break; 

    case NSFetchedResultsChangeDelete: 
     [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; 
     break; 

    case NSFetchedResultsChangeUpdate: 
     [self configureCell:[tableView cellForRowAtIndexPath:indexPath] atIndexPath:indexPath]; 
     break; 

    case NSFetchedResultsChangeMove: 
     [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; 
     // Reloading the section inserts a new row and ensures that titles are updated appropriately. 
     [tableView reloadSections:[NSIndexSet indexSetWithIndex:newIndexPath.section] withRowAnimation:UITableViewRowAnimationFade]; 
     break; 
     } 
    } 


    - (void)controller:(NSFetchedResultsController *)controller didChangeSection:(id <NSFetchedResultsSectionInfo>)sectionInfo atIndex:(NSUInteger)sectionIndex forChangeType: (NSFetchedResultsChangeType)type { 

    switch(type) { 

    case NSFetchedResultsChangeInsert: 
     [self.tableView insertSections:[NSIndexSet indexSetWithIndex:sectionIndex] withRowAnimation:UITableViewRowAnimationFade]; 
     break; 

    case NSFetchedResultsChangeDelete: 
     [self.tableView deleteSections:[NSIndexSet indexSetWithIndex:sectionIndex] withRowAnimation:UITableViewRowAnimationFade]; 
     } 
    } 


    - (void)controllerDidChangeContent:(NSFetchedResultsController *)controller { 
    // The fetch controller has sent all current change notifications, so tell the table  view to process all updates. 
    [self.tableView endUpdates]; 
    } 

    @end 

Answer 1

は、私はあなたのNSManagedObjectは、実際にコンタクトであることを確認し、前にこれを持っていた、スペルをチェックして、ケースをチェック - 通常