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    <p>What does mean? I get this error when trying to iterate through a file in Cocoa obj-c. </p> <p>I can't find any information on the web.</p> <p>Would appreciate some help. Thanks. </p> <p><em>EDIT</em></p> <p>I've been following this tutorial <a href="http://iphonedevelopment.blogspot.com/2010/08/core-data-starting-data.html" rel="nofollow noreferrer">(link)</a> to preload Core Data. I've tried creating a Cococa application and have also tried doing this from within my iPhone app. I think all my setup code for Core Data is fine. Whenever this method is called I get EXEC BAD ACCESS.</p> <pre><code>- (void)loadInitialData { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; // name ZSTREET_1 ZSTREET_2 ZCITY ZZIP ZURL ZTEL latitude longitude NSString *path = [[NSBundle mainBundle] pathForResource:@"placesdata" ofType:@"txt"]; NSString *fileString = [NSString stringWithContentsOfFile:path]; // reads file into memory as an NSString NSArray *lines = [fileString componentsSeparatedByString:@"\r"]; // each line, adjust character for line endings NSManagedObjectContext *context = [self managedObjectContext]; for (NSString *line in lines) { NSLog(line); NSString* string = [[NSString alloc] initWithUTF8String:line]; NSArray *parts = [string componentsSeparatedByString:@"\t"]; // value mapping NSString *name = [parts objectAtIndex:0]; NSString *street_1 = [parts objectAtIndex:1]; NSString *street_2 = [parts objectAtIndex:2]; NSString *city = [parts objectAtIndex:3]; NSString *zip = [parts objectAtIndex:4]; NSString *url = [parts objectAtIndex:5]; NSNumberFormatter * f = [[NSNumberFormatter alloc] init]; [f setNumberStyle:NSNumberFormatterDecimalStyle]; NSNumber *latitude = [f numberFromString:[parts objectAtIndex:6]]; NSNumber *longitude = [f numberFromString:[parts objectAtIndex:7]]; [f release]; // splitting the parts to create the objects Place *place = (Place *)[NSEntityDescription insertNewObjectForEntityForName:@"Place" inManagedObjectContext:context]; Address *address = (Address *)[NSEntityDescription insertNewObjectForEntityForName:@"Address" inManagedObjectContext:context]; Location *location = (Location *)[NSEntityDescription insertNewObjectForEntityForName:@"Location" inManagedObjectContext:context]; // set attributes [place setValue:name forKey:@"name"]; [address setValue:street_1 forKey:@"street_1"]; [address setValue:street_2 forKey:@"street_2"]; [address setValue:city forKey:@"city"]; [address setValue:zip forKey:"@zip"]; [address setValue:url forKey:@"url"]; [location setValue:latitude forKey:@"latitude"]; [location setValue:longitude forKey:@"longitude"]; // link the objects together [place setValue:address forKey:@"address"]; [place setValue:location forKeyPath:@"address.location"]; [string release]; } NSLog(@"Done initial load"); NSError *error; if (![context save:&amp;error]) { NSLog(@"Error saving: %@", error); } [context release]; [pool drain]; } </code></pre>
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