Re: an error from the expression: CLS_ISCLASS((Class)receiver) File: sendmsg.c Line 321

[Richard Frith-Macdonald]

On 13 Feb 2009, at 07:19, Fred Kiefer wrote:

> I don't understand this error message either.

It comes from the Objective-C runtime library ... where it's checking  
that the receiver is a valid class and not just some random bit of  
memory.
To make any real sense of it we need a stacktrace to see how the  
runtime is being called ... most likely with an uninitialised variable.

> But you already should get
> some warnings during compilation. sharedApplicatiion is clearly
> misspelled and you should get this told by the compiler. Best you fix
> you compiler warnings and then report back with a bit more  
> information.

Yes ... always best to fix compile/link errors before looking at  
runtime errors.