Symbol not found AECountItems on end user system

I have a dev machine so I think I have frameworks others don’t and this could be the cause of the problem. I’m not a mac compatibility expert so I would really appreciate if anyone could shed some light on what is bascially the Demo AU project with names changed coming up with missing symbols on end users systems:

Juce v1.46

2008-11-03 11:41:09.723 auval[890] CFLog (21): Error loading /Library/Audio/Plug-Ins/Components/Cytomic BusComp.component/Contents/MacOS/Cytomic BusComp: error code 4, error number 0 (Symbol not found: _AECountItems
Referenced from: /Library/Audio/Plug-Ins/Components/Cytomic BusComp.component/Contents/MacOS/Cytomic BusComp
Expected in: /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
FATAL ERROR: OpenAComponent: result: -50,0xFFFFFFCE


Hmm. I can’t find AUCountItems used anywhere in my code. Maybe it’s in apple’s AU code somewhere? Are you using the new cocoa version?