Warning message in Cadence SiP Layout XL when importing netlist

Hi,

can someone help to solve the problem described bellow?

This happens when I try to import a netlist using: File --> Import --> logic --> Others

 $PACKAGES
BGA ! BGA ; BGA
WARNING(SPMHNI-152): WARNING(SPMHNI-151): Refdes/slot 'BGA/G1' function proper~
ty 'LOGICAL_PATH @apollo_project_lib.apollo_design(tbl_1):\I18\' deleted.
WARNING(SPMHNI-152): WARNING(SPMHNI-151): Refdes/slot 'BGA/G1' function proper~
ty 'SCH_SIZE 1' deleted.
WARNING(SPMHNI-152): WARNING(SPMHNI-151): Refdes/slot 'BGA/G1' function proper~
ty 'PRIM_FILE apollo_project_lib.bga' deleted.
WARNING(SPMHNI-152): WARNING(SPMHNI-151): Refdes/slot 'BGA/G1' function proper~
ty 'HAS_FIXED_SIZE 1' deleted.
WARNING(SPMHNI-152): WARNING(SPMHNI-151): Refdes/slot 'BGA/G1' function proper~
ty 'SWAP_GROUP @apollo_project_lib.apollo_design(tbl_1):\I18\' deleted.
WARNING(SPMHNI-152): WARNING(SPMHNI-151): Refdes/slot 'BGA/G1' function proper~
ty 'HARD_LOCATION ' deleted.
DIE ! DIE ; U1
WARNING(SPMHNI-152): WARNING(SPMHNI-151): Refdes/slot 'U1/G1' function propert~
y 'LOGICAL_PATH @apollo_project_lib.apollo_design(tbl_1):\I23\' deleted.
WARNING(SPMHNI-152): WARNING(SPMHNI-151): Refdes/slot 'U1/G1' function propert~
y 'SCH_SIZE 1' deleted.
WARNING(SPMHNI-152): WARNING(SPMHNI-151): Refdes/slot 'U1/G1' function propert~
y 'PRIM_FILE apollo_project_lib.die' deleted.
WARNING(SPMHNI-152): WARNING(SPMHNI-151): Refdes/slot 'U1/G1' function propert~
y 'HAS_FIXED_SIZE 1' deleted.
WARNING(SPMHNI-152): WARNING(SPMHNI-151): Refdes/slot 'U1/G1' function propert~
y 'SWAP_GROUP @apollo_project_lib.apollo_design(tbl_1):\I23\' deleted.

Thanks