%size problem

["Patrick Conner" <pwconner@xxxxxxxxxxx>]

    575  ** #Item is defined to use the size of item when
defining the array         
    576 D#Item            S                   Like(Item)                        
     
    577 D#ItemScan        S              1A
Dim(%size(#Item))                      
 ======>                                          aaaaa                         
     
 *RNF3320 20 a      015000  The keyword parameter is not
defined; keyword is ignored.

What gives?

I tried using Item itself, but I received the same error.
Item is defined in a work file that is used as input and
output: F WorkFile IF A...
+---
| This is the RPG/400 Mailing List!
| To submit a new message, send your mail to RPG400-L@midrange.com.
| To subscribe to this list send email to RPG400-L-SUB@midrange.com.
| To unsubscribe from this list send email to RPG400-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com
+---