How to start a new design - best way (incremental compilation)

Each day it's a new problem :(

Today I'm starting to compile the subblock and import them as partition into the top design.

The problem is that the stage input contain the ASI IP (for which I've the licence of course, it's not an evaluation) but when I import the netlist in the top it tells me that:

Can't generate pof for project because the encrypted source file cannot be located: "asi_files_names". (asj_nco_fxx, mac_i_lpmd.v, etc..)

I've tried in the top level to add the library of Asi, but I've got the same message..

What can I do?

Edit reson: problem resolved, I missed to tell in the top to address the NCO path in library.

I didn't think that I need to set as library on the top level the path of the IP I use in the sub-design part, because I'm importing a netlist and I thought that it didn't need it.