Thanks Jens, I’ll test for NSNulls instead. I know the dictionary is valid 
because after I read it with dictionaryWithContentsOfFile:, I log it, and it 
‘looks' fine…


> On Jul 26, 2015, at 5:44 PM, Jens Alfke <j...@mooseyard.com> wrote:
> 
> 
>> On Jul 26, 2015, at 2:28 PM, Robert Martin <robmar...@frontiernet.net> wrote:
>> 
>> I get a null, and an error (200) that the plist contains null.
>> 
>> Before I make that call, I put in a check for nulls, but none are found:
> 
> You’re checking for nil pointers. (Which are illegal in Foundation 
> collections, so you’ll never find any.)
> It sounds like the error is complaining about instances of NSNull.
> 
> If that’s not the problem, then another possibility is that updateDictionary 
> itself is nil — your snippet won’t log that as a problem because the entire 
> enumeration will be silently skipped.
> 
> —Jens


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