[Daria]

I'm writing an AppleScript to export objects on individual layers in Omnigraffle. It opens the file as it's supposed to, but then at line 4, I get an error: OmniGraffle 5 got an error: Can’t get every canvas of alias "[path of file chosen]". Any idea why?

set myDocument to (choose file with prompt "Select an Omnigraffle file")
tell application "OmniGraffle 5"
	open myDocument
	set numCanvas to count of canvases of myDocument
end tell

set myDocument to (choose file with prompt "Select an Omnigraffle file")
tell application "OmniGraffle Professional 5"
	set oDoc to open myDocument
	set numCanvas to count of canvases of oDoc
end tell

[Daria]

Thanks a lot, RobTrew!