quartus 11.1调用DDR2 SDRAM IP核出错求助

quartus版本为11.1 sp2，在调用IP核DDR2 SDRAM Controller with uniphy是总是generation failed，具体提示信息为Error:  Simulation model generation failed: E:\altera\11.1\quartus/sopc_builder/bin/ip-make-simscript --spd=E:/TEST/TEST_FPGA_Verilog/DDR2 SDRAM_bishe1/ddr2wr.spd --output-directory=E:/TEST/TEST_FPGA_Verilog/DDR2 SDRAM_bishe1/ddr2wr_sim，找了好久都没找到原因，quartus重装后问题也没有解决，为什么?