ALTFP_MATRIX_MULT problem in Quartus 10.0

There is the altfpc_lib.v in the output directory, but the altfpc_lib isn't included in my project, so I inclede it manually. And the error is:

Error: Node instance "sd3" instantiates undefined entity "altfpc_lib".

The .qip reads as follows, is that right?

set_global_assignment -name IP_TOOL_NAME "ALTFP_MATRIX_MULT"

set_global_assignment -name IP_TOOL_VERSION "10.0"

set_global_assignment -name VERILOG_FILE [file join $::quartus(qip_path) "altfp_matrix_mult0.v"]

set_global_assignment -name MISC_FILE [file join $::quartus(qip_path) "altfp_matrix_mult0.bsf"]

set_global_assignment -name MISC_FILE [file join $::quartus(qip_path) "altfp_matrix_mult0_inst.v"]

set_global_assignment -name MISC_FILE [file join $::quartus(qip_path) "altfp_matrix_mult0_bb.v"]

set_global_assignment -name MISC_FILE [file join $::quartus(qip_path) "altfp_matrix_mult0.inc"]

set_global_assignment -name MISC_FILE [file join $::quartus(qip_path) "altfp_matrix_mult0.cmp"]

When I commented the code

"//altfpc_lib sd3( )", there's no error. Then I will test the function of altfp_matrix_mult.