Re: duplicate interface error (solved)

• Subject: Re: duplicate interface error (solved)
• From: Daniel Child <email@hidden>
• Date: Fri, 15 Feb 2008 17:51:47 -0500
• Delivered-to: email@hidden
• Delivered-to: email@hidden

Problem resolved....

On Feb 15, 2008, at 5:15 PM, Daniel Child wrote:

Hi,

I was trying to implement the NSCopying protocol for one of my classes, and the next time i compiled I got these two warnings/errors:

warning: duplicate interface declaration for class 'GenericRecord'
error: redefinition of 'struct GenericRecord'

The errors are cited within a file that imports the GenericRecord class.

The interface (and there is only one that I know of) looks harmless enough:

@interface GenericRecord : NSObject <NSCopying>
{
<<ivars>>
}
....
- (GenericRecord *) copyWithZone: (NSZone *) zone;

Earlier in the day XCode claimed that I had a duplicate "DataTypes.h" file (where I keep some enum definitions and functions). I removed the only visible one from the Groups & Files list (being sure to make a safe copy elsewhere of the contents elsewhere). Now things compile fine, but looking at Groups & Files it looks to me like the file ought to be considered missing.

There appears to be some kind of ghost in the machine, and I have no idea where to look. I was originally working with smaller programs from which some of these files were copied (copy reference and file when adding). But I don't see why this is suddenly a problem now and have no idea how to fix it.

Thanks in advance.

Daniel

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