SIGABRT received due to this code... Why?

I am trying to implement a tab bar controller, navigation controller and tableview into an application I'm working on but I am getting a SIGABRT error each time I try to run it and I don't know why and it is rather puzzling me. Below is the code that the console is referencing to (I believe):

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

static NSString *CellIdentifier = @"Cell";

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
    cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
}

    // Set up the cell...
NSString *cellValue = [listOfCoffees objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue;

return cell;

}

...and below is the console:

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSCFString tableView:cellForRowAtIndexPath:]: unrecognized selector sent to instance 0x6a17c00'
*** Call stack at first throw:
(
    0   CoreFoundation                      0x00dca5a9 __exceptionPreprocess + 18开发者_如何学JAVA5
    1   libobjc.A.dylib                     0x00f1e313 objc_exception_throw + 44
    2   CoreFoundation                      0x00dcc0bb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
    3   CoreFoundation                      0x00d3b966 ___forwarding___ + 966
    4   CoreFoundation                      0x00d3b522 _CF_forwarding_prep_0 + 50
    5   UIKit                               0x00091b98 -[UITableView(UITableViewInternal) _createPreparedCellForGlobalRow:withIndexPath:] + 634
    6   UIKit                               0x000874cc -[UITableView(UITableViewInternal) _createPreparedCellForGlobalRow:] + 75
    7   UIKit                               0x0009c8cc -[UITableView(_UITableViewPrivate) _updateVisibleCellsNow:] + 1561
    8   UIKit                               0x0009490c -[UITableView layoutSubviews] + 242
    9   QuartzCore                          0x016b4a5a -[CALayer layoutSublayers] + 181
    10  QuartzCore                          0x016b6ddc CALayerLayoutIfNeeded + 220
    11  QuartzCore                          0x0165c0b4 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 310
    12  QuartzCore                          0x0165d294 _ZN2CA11Transaction6commitEv + 292
    13  QuartzCore                          0x0165d46d _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 99
    14  CoreFoundation                      0x00dab89b __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 27
    15  CoreFoundation                      0x00d406e7 __CFRunLoopDoObservers + 295
    16  CoreFoundation                      0x00d091d7 __CFRunLoopRun + 1575
    17  CoreFoundation                      0x00d08840 CFRunLoopRunSpecific + 208
    18  CoreFoundation                      0x00d08761 CFRunLoopRunInMode + 97
    19  GraphicsServices                    0x010021c4 GSEventRunModal + 217
    20  GraphicsServices                    0x01002289 GSEventRun + 115
    21  UIKit                               0x0002ac93 UIApplicationMain + 1160
    22  Affogato                            0x00002259 main + 121
    23  Affogato                            0x000021d5 start + 53
    24  ???                                 0x00000001 0x0 + 1
)
terminate called throwing an exception

Any help would be greatly appreciated.

---

I'm quite sure the actual problem is somewhere else in the code, my guess would be you are using some string variable (possibly selectedCoffee ?) in place of the tableView's delegate.

---

The error is in the tableview delegate/datasource. CellForRowAtIndexPath is called by the tableview to query it's UITableViewCell object. Check your delegate/datasource connection.

---

Set a breakpoint and look where the app crash. Then we could help more.