Cannot find the file with my save data - ios

Question

I have a Checklist app and I want to save the name of the items and if they are checked or not.
Xcode tells me that my saved file has to be here:
2012-11-11 20:24:42.726 Checklists[1459:c07] Documents directory /Users/astanciu/Library/Application Support/iPhone Simulator/6.0/Applications/F4A90B71-A8CF-4EF8-B628-508C8B50CAD0/Library/Documentation
2012-11-11 20:24:42.728 Checklists[1459:c07] File path /Users/astanciu/Library/Application Support/iPhone Simulator/6.0/Applications/F4A90B71-A8CF-4EF8-B628-508C8B50CAD0/Library/Documentation/Checklists.plist
But in the Library folder I have only Caches and Preferences. Can't find anywhere the Checklists.plist file using Finder.
I am using Mountain Lion 10.8 and Xcode 4.5.2.
Code:
-(void)saveChecklistItems
{
NSMutableData *data = [[NSMutableData alloc] init];
NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:data];
[archiver encodeObject:items forKey:#"ChecklistItems"];
[archiver finishEncoding];
[data writeToFile:[self dataFilePath] atomically:YES];
}
-(id)initWithCoder:(NSCoder *)aDecoder
{
if(self = [super initWithCoder:aDecoder])
{
[self loadChecklistItems];
}
return self;
}
-(void)loadChecklistItems
{
NSString *path = [self dataFilePath];
if([[NSFileManager defaultManager] fileExistsAtPath:path])
{
NSData *data = [[NSData alloc] initWithContentsOfFile:path];
NSKeyedUnarchiver *unarchiver = [[NSKeyedUnarchiver alloc] initForReadingWithData:data];
items = [unarchiver decodeObjectForKey:#"ChecklistItems"];
}
else
{
items = [[NSMutableArray alloc] initWithCapacity:20];
}
}
Anyone has an idea what is the problem here ?
Thanks.

Answer 1

You don't show the code for determining self dataFilePath. It appears to reference Library/Documentation which is a non-standard directory.
Either you meant to use the NSDocumentDirectory constant instead of NSDocumatationDirectory in the code you have to determine the path, or you need to ensure that the directory exists before you try to write to it.