Pad's to Allegro Translator 17.4

Hello Forum,

I am trying to translate a old Pad's project to Allegro 17.4, looks like it is creating the netlist fine, but in the pads_in.log there is a message at the end,

ERROR: Subclass name SOLDERMASK_TOP not valid Allegro subcls for class ROUTE KEEPOUT. Quitting.
ERROR: Failed while writing the Allegro database.
Information: Object is empty, so CSet 1_16_17 renamed to DEFAULT

Warning: Default electrical CSets are not supported in Allegro PCB Editor.
Manually assign the ¡®DEFAULT¡¯ electrical cset to the objects.

Looking at the project.asc in Notepad++ but can't see what the issue is, any idea's would be greatly appreciated ! 

Thanks Much,

Mike Pollock.