cyclone V外接DDR3，现想实现硬控，IP核设计生成时出现如下错误

大家好，应用altera Cyclone V外接DDR3，启用HMC实现硬核控制，IP核在设计生成时出现如下错误：
Error: Error during execution of script generate_ed.tcl: fbone_example: "mem_if_al" (ENUM_MEM_IF_AL) "AL_11" is out of range: "AL_0", "AL_1", "AL_2", "AL_3", "AL_4", "AL_5", "AL_6", "AL_7", "AL_8", "AL_9", "AL_10"
Error: Execution of script generate_ed.tcl failed
请问这个错误是由IP核参数设计时，哪个因素引起的？需要怎么修改
第一次弄硬核，谢谢大家啦