When should I remove observers? Error about deallocating objects before removing observers

Question

I am trying to use key-value observing in one of my classes. I register the observers in the init method and remove/deregister them in the dealloc, but I get the following e

Answer 1

The normal code looks something like this:

- (void) dealloc
{
    [[NSNotificationCenter defaultCenter] removeObserver:self];
    [super dealloc];
}

Double check your signature of your dealloc method (Objective C is very unforgiving and will never warn you when you mess up the name of a method). For example, if your method name was "dealoc" (with one l), your dealloc would never be called.

Otherwise, edit your question to include your dealloc reoutine.