After completing the code for the section “Objective-C selector magic”, I keep getting a semantic issue.
“PerformanceSelector may cause a leak because its selector is unknown”. I have tried building the app anyway and the build will succeed but promptly crash after an exception gets thrown. I have tried using the pragma mark solution to ignore the error but the application will crash anyway. I tried finishing the rest of the code for the chapter hoping it would remedy the issue, but to no avail.
Has anyone else run into this issue? Any help on this problem would be greatly appreciated.