ALTPLL.v simulation Problem

How to simulate altpll.v in modelsim.

I am getting these following errors. there are my errors but all are same only. how to rectify it. can i coment out those line.

Module parameter 'scan_chain' not found for override.# ** Error: D:/Sudhir/OFDM_1/altpll.v(915): Module parameter 'primary_clock' not found for override.# ** Error: D:/Sudhir/OFDM_1/altpll.v(915): Module parameter 'clk5_time_delay' not found for override.# ** Error: D:/Sudhir/OFDM_1/altpll.v(915): Module parameter 'clk4_time_delay' not found for override.# ** Error: D:/Sudhir/OFDM_1/altpll.v(915): Module parameter 'clk3_time_delay' not found for override.# ** Error: D:/Sudhir/OFDM_1/altpll.v(915): Module parameter 'clk2_time_delay' not found for override.# ** Error: D:/Sudhir/OFDM_1/altpll.v(915): Module parameter 'clk1_time_delay' not found for override.# ** Error: D:/Sudhir/OFDM_1/altpll.v(915): Module parameter 'clk0_time_delay' not found for override.# ** Error: D:/Sudhir/OFDM_1/altpll.v(915): Module parameter 'extclk3_multiply_by' not found for override.# ** Error: D:/Sudhir/OFDM_1/altpll.v(915): Module parameter 'extclk2_multiply_by' not found for override.# ** Error: D:/Sudhir/OFDM_1/altpll.v(915): Module parameter 'extclk1_multiply_by' not found for override.

Thanks

Sudhir