#errors

I run into the following error from time to time" Expected specifier-qualifier-list before `XYZ` and everytime it takes me a while to work out what caused it. Making sure I don't forget 🙃 It's caused by introducing an import circular dependance where class abc imports class xyz which imports abc - the compiler is then caught in an infinite import loop. When we use #import we are copying that class's code into the importer's class whihc in turn copys it's imports, etc, until we get to the bottom of…

It's not unusal to see the following error when attempting to use a new framework or class: _OBJC_CLASS_$_'XYZ' There are mainly two reasons why this error occurs. Forgotten to include a framework that you are attempting to use. A class's .m file isn't included in the Target. See below for more information on both these possible causes. Missing framework Lets use the example error of _OBJC_CLASS_$_CoreData. If when adding Core Data to your project manually, you receive a similar set of errors as below it…