Question

I got a really weird bug in my app today:

NSMutableDictionary *testLocal = [[NSMutableDictionary alloc] init];
[testLocal setObject:@"Test" forKey:@"title"];
[testLocal setObject:@"test notification" forKey:@"body"];
[testLocal setObject:@"1" forKey:@"repeat"];
[testLocal setObject:@"26.04.2011 - 12:53" forKey:@"start"];

NSMutableDictionary *dict = [[NSMutableDictionary alloc] initWithDictionary:[saver read]];
[[dict objectForKey:@"content"] addObject:testLocal]; //Crashes here! (SIGABRT)

The method [saver read] returns this:

{
    content =     (
                {
            body = "test notification";
            repeat = 1;
            start = "26.04.2011 - 13.06";
            title = Test;
        }
    );
}

So I don’t see the error because the dict I write to is mutable and the key “content” is an array.

Thanks in advance.
mavrick3.

[saver read]:

- (NSDictionary *)read {
    return [[NSDictionary alloc] initWithContentsOfFile:[self filePath]];
}

Answer 1

Try checking out what class the object returned by [dict objectForKey:@"content"] is. Then things will be much clearer to you. I suspect it is not returning an NSMutableArray instance but something else, most likely NSArray which doesn’t respond to method addObject: