Weird linking error - any ideas?

Question

I have a working project and am trying to add an edit screen. After I get the code for the edit stuff in place - before it's even hooked up to the buttons - I get this error when linking, after the compile:
".objcclass_nameSomeClassName", referenced from:
literalpointer@__OBJC@__clsrefs@SomeClassName in SomeFileName.o
symbols(s) not found
collect2: Id returned 1 exit status
Anybody have any idea which direction I should go to figure out what's up? As far I can tell (of course everything is set up right but clearly it's not.

Answer 1

Well, hmm. I've gone over this several times with a fine-toothed comb and I am certain nothing is spelled wrong and the case is right.
As far as I can tell, I have the @class BlahBlah declaration in the right place and the right #Include stuff.
What else might be wrong, that I can look for?
It's a custom table cell, and if I feed the view a generic table cell it all works.
I have this structure - is there anything missing?
||||View.h
@class CellClass;
@interface ViewControllerClass : UIViewController <UITableViewDelegate, UITableViewDataSource> {
CellClass *cellClass;
(other stuff)
@property (nonatomic, retain) CellClass *cellClass;
(other stuff)
@end
||||View.m
#import "View.h"
#import "Cell.h"
@implementation ViewControllerClass
@synthesize cellClass;
(other stuff)
@end
||||Cell.h
@interface CellClass : UITableViewCell {
(some stuff)
@end
||||Cell.m
#import "Cell.h"
@implementation CellClass
(stuff)
@end