value stored during initialization is never read
===

     I am trying parse the google api so that I can retrieve the address and its data. 
     I get two errors that are on the commented lines. Why am I getting these errors. 
     I allocated the dit so I should have to release it correct.
    Here is my code to retrieve the data

  NSURL *url=[NSURL URLWithString:str];
    NSData *data=[[NSData alloc]initWithContentsOfURL:url];
    NSString *str1=[[[NSString alloc]initWithData:data  encoding:NSUTF8StringEncoding]autorelease];
    NSDictionary *dit=[[[NSDictionary alloc]init]autorelease];
    dit=[str1 JSONValue];
    NSArray *dit1=(NSArray *) [dit objectForKey:@"results"];
    NSDictionary *dit3=[[dit1 objectAtIndex:0]objectForKey:@"geometry"];
    NSDictionary *dit4=[dit3 objectForKey:@"bounds"];
    NSDictionary *northeast=[dit4 objectForKey:@"northeast"];
    NSDictionary *lt=[northeast objectForKey:@"lat"];
    NSDictionary *southwest=[dit4 objectForKey:@"southwest"];
    NSDictionary *lng=[southwest objectForKey:@"lng"];


