Question

I feel like I’m missing something obvious here but I’m new to obj-c so maybe it’s just something I’m not aware of.

I’m getting the exception error at runtime…

NSDictionaryI 0x9d384d0> setValue:forUndefinedKey:]: this class is not
key value coding-compliant for the key overObject.’

On the 4th line of this code…

NSDictionary *tempDictionary = [[NSDictionary alloc] init];

    Boolean overObjectYES = NO;
    Boolean overObjectNo = NO;

    [tempDictionary setValue:[NSNumber numberWithBool:overObjectYES] forKey:@"overObject"];

Answer 1

I think this is a combination of using NSDictionary when you mean NSMutableDictionary, and sending the message setValue when setObject is generally considered more appropriate. See this question for details:

NSDictionary setValue:forKey: — getting "this class is not key value coding-compliant for the key"