convert to ARC (Automatic Reference Counting) problem

[RAGOpoR]

How to this fix error for ARC converter tool.

/Classes/RootNewsController.m:682:4: error: receiver 'SHKMail' for class message is a forward declaration [4]

[SHKMail shareItem:myitem];

thank you.

[FredvanRijswijk]

Same problem here...

[shepting]

I had this problem after copying files from a Core Data project to one where I wanted to use Core Data, but hadn't chosen it at project creation. It needed the import for CoreData.h in the "ProjName-Prefix.pch" file in the "Supporting Files" directory.

#ifdef __OBJC__
    #import <UIKit/UIKit.h>
    #import <Foundation/Foundation.h>
    #import <CoreData/CoreData.h>

#endif

That did it for me anyhow.

[berikv]

In general: The error is caused by a missing import statement. Import the class that is used and the error will disappear.