ISE MAP时出错？错误信息如下：
时间：10-02
整理：3721RD
点击：
Pack:1107 - Pack was unable to combine the symbols listed below into a single IOB component because the site type selected is not compatible. The buffer lb_to_sram_inst/idt_r_data_0_IOBUF/OBUFT can not merge with signal idt_r_data<0>. The signal has a NOMERGE property.
双向IO?
对，双向IO，提示这个错误
请问后来你解决了吗?