VCS: uvm config db with array of interface

Hi,

Is there limitations when using uvm_config_db with interface array:

Here is an example where I get compilation error:

module tb_top();

   import uvm_pkg::*;

   /* DUT interfaces */
   test_if #(.MY_PARAM(4)) my_if   [3] (); // array of interfaces

   // Clocks and resets

   [...]

   // design under verification
   [...]

   initial begin
     string inst_name;

      for (int i = 0; i < 3; i++) begin
         $sformat(inst_name, "*.source[%0d].*",i);
         uvm_config_db#(virtual test_if#(.MY_PARAM(4)))::set(uvm_root::get(), inst_name, "vif", my_if[i]); // This line gives compilation error !!!
      end

      run_test();
      $finish;
  end

endmodule
 

Compilation error:

Identifier 'my_if' has not been declared yet. If this error is  not expected, please check if you have set `default_nettype to none.

Is that a simulator issue or is that not supported at all?

Thank you

Florian