Iphone 将两个表视图合并到具有核心数据的选项卡栏时出现问题

我有一个带有多个视图的选项卡栏，一个带有连接到核心数据的tableview。现在我在另一个项目中又创建了一个tableview，我想将它合并到我的第一个项目中。这对我来说并不新鲜，我以前在另一个项目中做过，在那里我有三个具有不同核心数据表的TableView，都工作得很好。所以我想这应该是在公园里散步

在我的AppDelage.m和.h中，我将managedObjectContext的所有代码添加并复制到managedObjectContext2。并制作了一个新的导航控制器“navigationController2”

然后在protokollist.m中，我将managedObjectContext更改为managedObjectContext2。并在MainWindow.nib中进行了必要的连接

但当我尝试运行该项目时，会收到以下错误消息：

2011-07-24 18:22:58.188 Kortspel[1346:207] Unknown class ProtokollList in Interface Builder file.
2011-07-24 18:22:58.198 Kortspel[1346:207] -[UIViewController setManagedObjectContext2:]: unrecognized selector sent to instance 0x4d13c40
2011-07-24 18:22:58.199 Kortspel[1346:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIViewController setManagedObjectContext2:]: unrecognized selector sent to instance 0x4d13c40'
*** Call stack at first throw:
(
    0   CoreFoundation                      0x00fab5a9 __exceptionPreprocess + 185
    1   libobjc.A.dylib                     0x010ff313 objc_exception_throw + 44
    2   CoreFoundation                      0x00fad0bb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
    3   CoreFoundation                      0x00f1c966 ___forwarding___ + 966
    4   CoreFoundation                      0x00f1c522 _CF_forwarding_prep_0 + 50
    5   Kortspel                            0x00001f28 -[KortAppDelegate applicationDidFinishLaunching:] + 709
    6   UIKit                               0x002c4ce2 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1252
    7   UIKit                               0x002c6d88 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 439
    8   UIKit                               0x002d1617 -[UIApplication handleEvent:withNewEvent:] + 1533
    9   UIKit                               0x002c9abf -[UIApplication sendEvent:] + 71
    10  UIKit                               0x002cef2e _UIApplicationHandleEvent + 7576
    11  GraphicsServices                    0x01903992 PurpleEventCallback + 1550
    12  CoreFoundation                      0x00f8c944 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
    13  CoreFoundation                      0x00eeccf7 __CFRunLoopDoSource1 + 215
    14  CoreFoundation                      0x00ee9f83 __CFRunLoopRun + 979
    15  CoreFoundation                      0x00ee9840 CFRunLoopRunSpecific + 208
    16  CoreFoundation                      0x00ee9761 CFRunLoopRunInMode + 97
    17  UIKit                               0x002c67d2 -[UIApplication _run] + 623
    18  UIKit                               0x002d2c93 UIApplicationMain + 1160
    19  Kortspel                            0x00001c40 main + 102
    20  Kortspel                            0x00001bd1 start + 53
)
terminate called after throwing an instance of 'NSException'

2011-07-25 20:06:56.588 Kortspel[3205:207] Unknown class ProtokollList in Interface Builder file.
2011-07-25 20:07:01.585 Kortspel[3205:207] -[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x590f3f0
2011-07-25 20:07:01.587 Kortspel[3205:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x590f3f0'
*** Call stack at first throw:
(
    0   CoreFoundation                      0x00fb25a9 __exceptionPreprocess + 185
    1   libobjc.A.dylib                     0x01106313 objc_exception_throw + 44
    2   CoreFoundation                      0x00fb40bb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
    3   CoreFoundation                      0x00f23966 ___forwarding___ + 966
    4   CoreFoundation                      0x00f23522 _CF_forwarding_prep_0 + 50
    5   UIKit                               0x004882b7 -[UISectionRowData refreshWithSection:tableView:tableViewRowData:] + 1834
    6   UIKit                               0x00485d88 -[UITableViewRowData numberOfRows] + 108
    7   UIKit                               0x00339677 -[UITableView noteNumberOfRowsChanged] + 132
    8   UIKit                               0x00346708 -[UITableView reloadData] + 773
    9   UIKit                               0x00343844 -[UITableView layoutSubviews] + 42
    10  QuartzCore                          0x01f52a5a -[CALayer layoutSublayers] + 181
    11  QuartzCore                          0x01f54ddc CALayerLayoutIfNeeded + 220
    12  QuartzCore                          0x01efa0b4 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 310
    13  QuartzCore                          0x01efb294 _ZN2CA11Transaction6commitEv + 292
    14  QuartzCore                          0x01efb46d _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 99
    15  CoreFoundation                      0x00f9389b __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 27
    16  CoreFoundation                      0x00f286e7 __CFRunLoopDoObservers + 295
    17  CoreFoundation                      0x00ef11d7 __CFRunLoopRun + 1575
    18  CoreFoundation                      0x00ef0840 CFRunLoopRunSpecific + 208
    19  CoreFoundation                      0x00ef0761 CFRunLoopRunInMode + 97
    20  GraphicsServices                    0x019091c4 GSEventRunModal + 217
    21  GraphicsServices                    0x01909289 GSEventRun + 115
    22  UIKit                               0x002d9c93 UIApplicationMain + 1160
    23  Kortspel                            0x00002524 main + 102
    24  Kortspel                            0x000024b5 start + 53
)
terminate called after throwing an instance of 'NSException'

我不知道它说它不识别“protokollist”类，因为它是在protokollist.h中定义的

有人知道吗？这是发射前的最后一步

编辑： 如果我尝试空白：

/*
ProtokollList *protokollList = (ProtokollList *)[navigationController2 topViewController];
    // Set its managedObjectContext property to the managed object context 
    protokollList.managedObjectContext2 = self.managedObjectContext2;
*/

我可以打开项目，但当我单击Protokollist tableview时，我会收到以下新的错误消息：

2011-07-24 18:22:58.188 Kortspel[1346:207] Unknown class ProtokollList in Interface Builder file.
2011-07-24 18:22:58.198 Kortspel[1346:207] -[UIViewController setManagedObjectContext2:]: unrecognized selector sent to instance 0x4d13c40
2011-07-24 18:22:58.199 Kortspel[1346:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIViewController setManagedObjectContext2:]: unrecognized selector sent to instance 0x4d13c40'
*** Call stack at first throw:
(
    0   CoreFoundation                      0x00fab5a9 __exceptionPreprocess + 185
    1   libobjc.A.dylib                     0x010ff313 objc_exception_throw + 44
    2   CoreFoundation                      0x00fad0bb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
    3   CoreFoundation                      0x00f1c966 ___forwarding___ + 966
    4   CoreFoundation                      0x00f1c522 _CF_forwarding_prep_0 + 50
    5   Kortspel                            0x00001f28 -[KortAppDelegate applicationDidFinishLaunching:] + 709
    6   UIKit                               0x002c4ce2 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1252
    7   UIKit                               0x002c6d88 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 439
    8   UIKit                               0x002d1617 -[UIApplication handleEvent:withNewEvent:] + 1533
    9   UIKit                               0x002c9abf -[UIApplication sendEvent:] + 71
    10  UIKit                               0x002cef2e _UIApplicationHandleEvent + 7576
    11  GraphicsServices                    0x01903992 PurpleEventCallback + 1550
    12  CoreFoundation                      0x00f8c944 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
    13  CoreFoundation                      0x00eeccf7 __CFRunLoopDoSource1 + 215
    14  CoreFoundation                      0x00ee9f83 __CFRunLoopRun + 979
    15  CoreFoundation                      0x00ee9840 CFRunLoopRunSpecific + 208
    16  CoreFoundation                      0x00ee9761 CFRunLoopRunInMode + 97
    17  UIKit                               0x002c67d2 -[UIApplication _run] + 623
    18  UIKit                               0x002d2c93 UIApplicationMain + 1160
    19  Kortspel                            0x00001c40 main + 102
    20  Kortspel                            0x00001bd1 start + 53
)
terminate called after throwing an instance of 'NSException'

2011-07-25 20:06:56.588 Kortspel[3205:207] Unknown class ProtokollList in Interface Builder file.
2011-07-25 20:07:01.585 Kortspel[3205:207] -[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x590f3f0
2011-07-25 20:07:01.587 Kortspel[3205:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x590f3f0'
*** Call stack at first throw:
(
    0   CoreFoundation                      0x00fb25a9 __exceptionPreprocess + 185
    1   libobjc.A.dylib                     0x01106313 objc_exception_throw + 44
    2   CoreFoundation                      0x00fb40bb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
    3   CoreFoundation                      0x00f23966 ___forwarding___ + 966
    4   CoreFoundation                      0x00f23522 _CF_forwarding_prep_0 + 50
    5   UIKit                               0x004882b7 -[UISectionRowData refreshWithSection:tableView:tableViewRowData:] + 1834
    6   UIKit                               0x00485d88 -[UITableViewRowData numberOfRows] + 108
    7   UIKit                               0x00339677 -[UITableView noteNumberOfRowsChanged] + 132
    8   UIKit                               0x00346708 -[UITableView reloadData] + 773
    9   UIKit                               0x00343844 -[UITableView layoutSubviews] + 42
    10  QuartzCore                          0x01f52a5a -[CALayer layoutSublayers] + 181
    11  QuartzCore                          0x01f54ddc CALayerLayoutIfNeeded + 220
    12  QuartzCore                          0x01efa0b4 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 310
    13  QuartzCore                          0x01efb294 _ZN2CA11Transaction6commitEv + 292
    14  QuartzCore                          0x01efb46d _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 99
    15  CoreFoundation                      0x00f9389b __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 27
    16  CoreFoundation                      0x00f286e7 __CFRunLoopDoObservers + 295
    17  CoreFoundation                      0x00ef11d7 __CFRunLoopRun + 1575
    18  CoreFoundation                      0x00ef0840 CFRunLoopRunSpecific + 208
    19  CoreFoundation                      0x00ef0761 CFRunLoopRunInMode + 97
    20  GraphicsServices                    0x019091c4 GSEventRunModal + 217
    21  GraphicsServices                    0x01909289 GSEventRun + 115
    22  UIKit                               0x002d9c93 UIApplicationMain + 1160
    23  Kortspel                            0x00002524 main + 102
    24  Kortspel                            0x000024b5 start + 53
)
terminate called after throwing an instance of 'NSException'

致以最良好的祝愿， xqtr编辑：

我知道关键点是关于IB的警告（一开始没有注意到）

您可以检查protokollist.h和protokollist.m是否有效地分配给您正在构建的目标吗？（我想是的，否则你会有更多的链接问题，无论如何，这是一个基本的检查）

如果这是确定的，那么我会简单地尝试一个清洁和重建所有

如果这不能解决问题，那么这可能意味着链接器没有在最终二进制文件中包含protokollist.m，因为进行了一些优化（该类可能永远不会在代码的其余部分中引用，仅在Interface Builder中引用）。解决方法是将

-all\u load

添加到项目的链接器标志中

如果这没有帮助，我很难过，但我没有更多的建议

您的电话是：

    protokollList.managedObjectContext2 = self.managedObjectContext2;

在

protokollist

中找不到名为

managedObjectContext2

的属性。这可以通过以下行进行推断：

-[UIViewController setManagedObjectContext2:]: unrecognized selector sent to instance 0x4d13c40

因此，您可以在

protokollist

中定义

managedObjectContext2

（它应该是

UIViewController

）

编辑

接口协议：UITableViewController{
NSFetchedResultsController*FetchedResultsController 2；
NSManagedObjectContext*managedObjectContext2；
}
@属性（非原子，保留）NSManagedObjectContext*managedObjectContext2；
@结束

Hi@sergio，谢谢您的回复！在ProtokollList.h中，我已经定义了managedObjectContext2:@interface ProtokollList:UITableViewController{NSFetchedResultsController*fetchedResultsController2；NSManagedObjectContext*managedObjectContext2；}@end或者我做了什么错事吗？您应该缺少属性定义，请参阅我的编辑，不要忘了

.m

文件中的

@synthesis

…不，我也有属性定义，所以不可能是它。@属性（非原子，保留）NSFetchedResultsController*FetchedResultsController；2；@属性（非原子，保留）NSManagedObjectContext*managedObjectContext2；和@synthesisfetchedresultscoontroller2，managedObjectContext2；再次感谢您的回复和新的编辑。我都试过了，但是我得到了相同的错误信息。真烦人。我会发布整个代码，但不能，因为发布点太少了。我将在几个小时后发布。还要检查appDelegate中的

[navigationController2 topViewController]

是否返回ProtoKollist类型的真实对象，以及演员阵容是否在玩把戏。。。