SystemVerilog import into DFII

Hello,

I would like to import System Verilog code into DFII. Code contains package declaration and multiple modules. I used following command :
ncvlog -sv -use5x  -work myLib  my_file.sv
Import was finished without errors (only warning ncvlog: *W,DLNOHV: Unable to find an 'hdl.var' file to load in).
Now I see multiple new cells in library manager. Every module has its own cell, packagage has separate cell and also imported has separate cell. Cells of the modules have view module and the package have view verilog_package.
Every view has the same code (same as the imported file).
Now I would like to simulate the code using AMS designer. I created symbol view ot the cell my_file (cell of the imported file).
Problem is I cannot create .oa file.
I tried reopen the module view in HE and heve the file created then it is saved and closed. I got the error
visadev: *F,NOCUF: Cannot Load Compilation Unit.
I also tried to generate the .oa file using the ADE (Tools - Update Text views)
I set update text view of my_file view I got error
SystemVerilog *E,   EDPS: Parsing of systemverilog file failed.

Is it possible to create .oa file during system verilog import? Or how should i handle to import such system verilog code into DFII and after that use it (place it into schematis and simulate it by AMS designer). I run AMS designer from ADE.

Versions of the tools I use :

(irun: 13.20-s018)

IC6.1.6.500.5

Thanks a lot