How can I get the value / keys of NSDictionary objects in the debugger console?
ios, lldb, objective-c
Solution
error: no known method '-objectForKey:'; cast the message send to the method's return type
So, it tells you it can't deduce return type information merely from the name of the message send - and that's perfectly fine. And it even tells you how exactly you have to resolve that problem - you have to cast the message send to the method's return type.
Firing up Apple's docs, we find out that `- [NSDictionary objectForKey:]` returns `id` - the generic Objective-C object type. Casting to id (or even better, if you know what types of objects your dictionary holds, casting to that exact object type) does the trick:
(lldb) print (MyObject *)[(NSDictionary *)[self dictionary] objectForKey:@"foobar"]
Problem
I set a breakpoint... if I do: ``` (lldb) print [self dictionary] (NSDictionary *) $5 = 0x0945c760 1 key/value pair ``` but if I do: ``` (lldb) print [[self dictionary] allKeys] error: no known method '-allKeys'; cast the message send to the method's return type error: 1 errors parsing expression ``` Even if I try to access the key that I know is in there.. ``` (lldb) print [[self dictionary] objectForKey:@"foobar"] error: no known method '-objectForKey:'; cast the message send to the method's return type error: 1 errors parsing expression ``` What am I doing wrong?