PB12.NET "unknown error" on build after migration

[Janeypie]

Hi,

I've migrated a PB11.5 app to PB12.NET and I am now running builds to
flush out any errors.

I've fixed the first few however now I'm getting the following error,
which I can't figure out how to fix:

Error Summary : 1 error(s)

c:\projects\clientdevelopment\miquest8.net\m7\wpf\c\projects
\clientdevelopment\miquest8.net\m7_w0\m7_w0.pbl\w_frame.srw(2364,153):
w_frame.notifyicondata.itemchanged.127 C0352: Unknown error.

Powerscript compile complete -- 1 error(s), 0 warning(s)
Compile return code = 200. Unable to continue build operation.


the puzzle for me is that the notifyicondata control is actually a
structure so there is no itemchanged event!

Anyone have any ideas for me to investigate???

thanks!