Abort on iPhone simulator

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I am receiving an SIGABRT error on the last line of this code loginButton.enabled = YES;. It was working this morning and now this error comes up.

-(IBAction)login:(id)sender
{
    UIButton *loginButton = (UIButton *)sender;
    loginButton.enabled = NO;
    NSString *filePath = [self dataFilePath];
    if([[NSFileManager defaultManager] fileExistsAtPath:filePath])
    {
        NSArray *array = [[NSArray alloc] initWithContentsOfFile:filePath];
        NSString *nameString = [[NSString alloc] init];
        NSString *contactIdString = [[NSString alloc] init];
        NSString *genderString = [[NSString alloc] init];
        NSString *contactTypeString = [[NSString alloc] init];
        nameString = [array objectAtIndex:0];
        contactIdString = [array objectAtIndex:1];
        genderString = [array objectAtIndex:2];
        contactTypeString = [array objectAtIndex:3];

        self.name = nameString;
        self.contactId = contactIdString;
        self.gender = genderString;
        self.contactType = contactTypeString;
        [self.userArray removeAllObjects];
        [self performSelectorInBackground:@selector(sendData) withObject:nil];

        [nameString release];
        [contactIdString release];
        [genderString release];
        [contactTypeString release];

        UIBarButtonItem *logoutButton = [[UIBarButtonItem alloc] initWithTitle:@"Logout" style:UIBarButtonItemStylePlain target:self action:@selector(logout:)];

        //[logoutButton setTitle:@"Logout"];  
        [[self navigationItem] setRightBarButtonItem:logoutButton];
        [logoutButton release];
    }
    else
    {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"New User" message:@"It seems you have not used FaceDirectory before, please go to My Details and fill out the information then click save." delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil];
        [alert show];
        [alert release];
    }
    loginButton.enabled = YES;
}

Here is the error dump.

2011-08-12 11:41:56.700 FaceConnect[1651:207] Reachability Flag Status: -R ------- networkStatusForFlags
2011-08-12 11:41:59.247 FaceConnect[1651:207] selected first row
2011-08-12 11:42:02.344 FaceConnect[1651:6b07] *** __NSAutoreleaseNoPool(): Object 0x7a0cf10 of class NSConcreteMutableData autoreleased with no pool in place - just leaking
2011-08-12 11:42:02.344 FaceConnect[1651:207] -[__NSCFData setEnabled:]: unrecognized selector sent to instance 0x6f4b820
2011-08-12 11:42:02.344 FaceConnect[1651:6b07] *** __NSAutoreleaseNoPool(): Object 0x7a108b0 of class NSConcreteMutableData autoreleased with no pool in place - just leaking
2011-08-12 11:42:02.344 FaceConnect[1651:6b07] *** __NSAutoreleaseNoPool(): Object 0x7e06e70 of class NSConcreteMutableData autoreleased with no pool in place - just leaking
2011-08-12 11:42:02.344 FaceConnect[1651:6b07] *** __NSAutoreleaseNoPool(): Object 0x7e06220 of class NSConcreteMutableData autoreleased with no pool in place - just leaking
2011-08-12 11:42:02.345 FaceConnect[1651:6b07] *** __NSAutoreleaseNoPool(): Object 0x7e06ca0 of class NSConcreteMutableData autoreleased with no pool in place - just leaking
2011-08-12 11:42:02.345 FaceConnect[1651:6b07] *** __NSAutoreleaseNoPool(): Object 0x7e068c0 of class NSURL autoreleased with no pool in place - just leaking
2011-08-12 11:42:02.345 FaceConnect[1651:6b07] *** __NSAutoreleaseNoPool(): Object 0x7e061c0 of class NSMutableURLRequest autoreleased with no pool in place - just leaking
2011-08-12 11:42:02.345 FaceConnect[1651:6b07] *** __NSAutoreleaseNoPool(): Object 0x7e069e0 of class NSCFString autoreleased with no pool in place - just leaking
2011-08-12 11:42:02.345 FaceConnect[1651:6b07] *** __NSAutoreleaseNoPool(): Object 0x7e06b30 of class NSCFString autoreleased with no pool in place - just leaking
2011-08-12 11:42:02.345 FaceConnect[1651:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFData setEnabled:]: unrecognized selector sent to instance 0x6f4b820' *** Call stack at first throw: (
        0   CoreFoundation       0x0249d919 __exceptionPreprocess + 185
        1   libobjc.A.dylib      0x025eb5de objc_exception_throw + 47
        2   CoreFoundation       0x0249f42b -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
        3   CoreFoundation       0x0240f116 ___forwarding___ + 966
        4   CoreFoundation       0x0240ecd2_CF_forwarding_prep_0 + 50
        5   FaceConnect          0x0000a7ea -[HubViewController login:] + 1802
        6   UIKit                0x00123e14 -[UIApplication sendAction:to:from:forEvent:] + 119
        7   UIKit                0x0032b14b-[UIBarButtonItem(UIInternal) _sendAction:withEvent:] + 156
        8   UIKit                0x00123e14 -[UIApplication sendAction:to:from:forEvent:] + 119
        9   UIKit                0x001ad6c8 -[UIControlsendAction:to:forEvent:] + 67
        10  UIKit                0x001afb4a -[UIControl(Internal) _sendActionsForEvents:withEvent:] +527
        11  UIKit                0x001ae6f7 -[UIControltouchesEnded:withEvent:] + 458
        12  UIKit                0x001472ff -[UIWindow _sendTouchesForEvent:] + 567
        13  UIKit                0x001291ec -[UIApplication sendEvent:] + 447
        14  UIKit                0x0012dac4 _UIApplicationHandleEvent + 7495
        15  GraphicsServices     0x02924afa PurpleEventCallback + 1578
        16  CoreFoundation       0x0247edc4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__+ 52
        17  CoreFoundation       0x023df737__CFRunLoopDoSource1 + 215
        18  CoreFoundation       0x023dc9c3 __CFRunLoopRun + 979
        19  CoreFoundation       0x023dc280 CFRunLoopRunSpecific + 208
        20  CoreFoundation       0x023dc1a1 CFRunLoopRunInMode + 97
        21  GraphicsServices     0x029232c8 GSEventRunModal + 217
        22  GraphicsServices     0x0292338d GSEventRun + 115
        23  UIKit                0x00131b58 UIApplicationMain + 1160
        24  FaceConnect          0x00001ac9 main + 121
        25  FaceConnect          0x00001a45 start + 53
        26  ???                  0x00000001 0x0 + 1 )
2011-08-12 11:42:02.346 FaceConnect[1651:6b07] *** __NSAutoreleaseNoPool(): Object 0x7e06a40 of class NSCFString autoreleased with no pool in place - just leaking
2011-08-12 11:42:02.346 FaceConnect[1651:6b07] *** __NSAutoreleaseNoPool(): Object 0x6f4c0c0 of class NSCFString autoreleased with no pool in place - just leaking terminate called after throwing an instance of 'NSException' Current language:  auto; currently objective-c

I have just checked it on my iPhone, and the application does not crash. It only happens on the simulator.

iphone
objective-c
xcode
asked on Stack Overflow Aug 12, 2011 by mintuz • edited Aug 12, 2011 by Gilles 'SO- stop being evil'

3 Answers

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You create an empty strings with alloc/init, and then you change them to value returned by objectAtIndex:. This causes the pointer to point to an autoreleased value. After you release your strings, the application will crash because retain count will become less than zero.

answered on Stack Overflow Aug 12, 2011 by Andriy • edited Jan 9, 2019 by Andriy
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-(IBAction)login:(id)sender {

  [(UIButton*) sender setEnabled:NO];   

  if([[NSFileManager defaultManager] fileExistsAtPath:filePath])  {
   NSArray *array = [[NSArray alloc] initWithContentsOfFile:filePath];

   NSString* name = [array objectAtIndex:0];
   NSString* contactId = [array objectAtIndex:1]; // depends if it is an integer then use int
   NSString* gender = [array objectAtIndex:2];
   NSString* contactType = [array objectAtIndex:3];

   //[self.userArray removeAllObjects]; // what is your user array and why you are removing all the objects
                                   // i could not find where you are setting the value for userArray
   [self.userArray arrayWithObjects:self.name, self.contactId, self.gender,self.contactType, nil];

   [self performSelectorInBackground:@selector(sendData) withObject:nil];

   /*if (loginButton.selected == NO) {
    // Represents user needs to login. Code for login user.
  }else
  {
     [loginButton setTitle:@"Logout"]; 
  }

  // toggle the login/logout states.
  loginButton.selected = !loginButton.selected;*/

  UIBarButtonItem *logoutButton = [[UIBarButtonItem alloc] initWithTitle:@"Logout"  style:UIBarButtonItemStylePlain target:self action:@selector(logout:)];

  //[logoutButton setTitle:@"Logout"];  
  [[self navigationItem] setRightBarButtonItem:logoutButton];
  [logoutButton release];
 }

 else {
   UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"New User" message:@"It seems you have not used FaceDirectory before, please go to My Details and fill out the information then click save." delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil];

   [alert show];
   [alert release];

}
[(UIButton*) sender setEnabled:YES];

}

i could not find where you are setting the value for userArray and so i thought i think you are binding the info to userArray and sending

-(id)sendData{
  //Do whatever you want to do with userArray
}


 -(void)viewDidUnLoad{
      self.userarray = nil;
      [super viewDidlUnload];
 }
 -(void)dealloc{
     [userArray release];
     [super dealloc];
  }
answered on Stack Overflow Aug 12, 2011 by Praveen-K • edited Aug 12, 2011 by Praveen-K
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I guess the error is propagating from FaceConnect. Please check, it's showing a lot of leaks and warnings.

answered on Stack Overflow Aug 12, 2011 by mysticboy59

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