在dct中读入ddc文件时一直报这种类型的Warning: The pin direction of 'xxx' pin on 'SRAMxxx' cell in the 'SRAMxxx_max_hth' technology library is inconsistent with the same-name pin in the 'xxx' physical library. No physical link for the logical lib cell. (PSYN-058),我去icc中打开这个memory的physical cell看了下发现pin的属性都是unknown,请问应该如何编辑这些属性呢?