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PONSDate is crashing my app and I have no idea why
 

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    <p>The basics are are follows:</p> <p>I need to control 2 times (NSDate) with 1 UIDatePicker. I created a new Single View project in XCode (v 4.4.1) just to start fiddling with the items I'll be needing. I used a storyboard in the creation of the project, easy peasy. In the storyboard I got rid of the view controller and dragged out a navigation controller. Removed the table view that was the root view controller and added a regular view controller as the root view controller. On there I place a button. I dragged out another view controller and connect that button on the root view controller to this new view controller using 'Push'. Very simple. I test it, it works, basic.</p> <p>I create a class for the new view controller I just added and set the view controller in storyboard to be of that type. In storyboard I then add a UIDatePicker, a UIButton, and a UITableView (please keep in mind this is just me fiddling trying to make things work and trying to learn how to use everything, still quite new to this).</p> <p>The code for my ViewController class is as follows:</p> <p><strong>NewViewController.h</strong></p> <pre><code>#import &lt;UIKit/UIKit.h&gt; @interface Reminders : UIViewController &lt;UITableViewDataSource, UITableViewDelegate&gt; { NSInteger selectedRow; } @property (nonatomic, retain) NSDate *amTime; @property (nonatomic, retain) NSDate *pmTime; @property (nonatomic, retain) IBOutlet UITableView *tbl; @property (nonatomic, retain) IBOutlet UIDatePicker *picker; - (IBAction)timeChange:(id)sender; - (IBAction)pickerChange:(id)sender; - (NSString *)dateAsString: (NSDate *)date; @end </code></pre> <p><strong>NewViewController.m</strong></p> <pre><code>#import "Reminders.h" @interface Reminders () @end @implementation Reminders @synthesize tbl, picker; @synthesize amTime, pmTime; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization NSLog(@"init"); } return self; } - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. NSLog(@"did load"); amTime = [NSDate date]; NSLog(@"AM time viewDidLoad: %@", [self dateAsString:amTime]); pmTime = [NSDate date]; NSLog(@"PM time viewDidLoad: %@", [self dateAsString:pmTime]); selectedRow = (NSInteger)1; } - (void)viewDidUnload { [super viewDidUnload]; // Release any retained subviews of the main view. } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return (interfaceOrientation == UIInterfaceOrientationPortrait); } -(NSInteger) numberOfSectionsInTableView:(UITableView *)tableView { return 1; } -(NSInteger) tableView:(UITableView *)table numberOfRowsInSection:(NSInteger)section { return 3; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { //NSLog(@"cell for row"); UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"MyIdentifier"]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:@"MyIdentifier"]; } if (indexPath.row == 0) { cell.textLabel.text = @"Dose"; cell.detailTextLabel.text = @"120"; } else if (indexPath.row == 1) { cell.textLabel.text = @"AM"; //cell.detailTextLabel.text = @"time am"; cell.detailTextLabel.text = [self dateAsString:amTime]; } else if (indexPath.row == 2) { cell.textLabel.text = @"PM"; //cell.detailTextLabel.text = @"time pm"; cell.detailTextLabel.text = [self dateAsString:pmTime]; } if (selectedRow == indexPath.row) { [tbl selectRowAtIndexPath:[NSIndexPath indexPathForRow:indexPath.row inSection:0] animated:NO scrollPosition:0]; } return cell; } -(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { if (indexPath.row == 0) { selectedRow = 0; } else if (indexPath.row == 1) { selectedRow = 1; [picker setDate:amTime]; } else if (indexPath.row == 2) { selectedRow = 2; [picker setDate:pmTime]; } } - (IBAction)timeChange:(id)sender { if (selectedRow == 1) { amTime = [NSDate date]; NSLog(@"time change: %@", [self dateAsString:amTime]); } else if (selectedRow == 2) { pmTime = [NSDate date]; NSLog(@"time change: %@", [self dateAsString:pmTime]); } else { } [tbl reloadData]; } - (IBAction)pickerChange:(id)sender { if (selectedRow == 1) { amTime = [picker date]; NSLog(@"PICKER time change: %@", [self dateAsString:amTime]); } else if (selectedRow == 2) { pmTime = [picker date]; NSLog(@"PICKER time change: %@", [self dateAsString:pmTime]); } else { NSLog(@"picker does NOTHING"); } [tbl reloadData]; } - (NSString *)dateAsString:(NSDate *)date { NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; [formatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"]; NSString *stringFromDate = [formatter stringFromDate:date]; return stringFromDate; } </code></pre> <p>Yes, I totally realize there are actions for both the button and date picker that are altering the times and the reason the button and corresponding action are there is because I started adding things in when I couldn't get it to work the way I thought it should have been working. </p> <p>Anyway. The times seem to start off fine, but are some point are made invalid objective-c objects from what I can see by inspection. It chokes on the cellForRowAtIndexPath method when it tried to put the 'amTime' into the cell detail text.</p> <p>Here's the kicker.... I created the same app, using the same steps I mentioned above, same code (copy pasted), on another machine (one that has proper code signing keys), and that version works properly, even if I run that project on my current machine. When I create the project on my current machine, it crashes.</p> <p>I apologize for the length post but I wanted to try to give as much detail as possible.</p>
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