alllegro 16.6去除DUMMY NET问题

      修改以前的板子，有原理和PCB图。用NETLIST导入网表时，提示出错：
1、------ Directives ------
RIPUP_ETCH TRUE;
RIPUP_DELETE_FIRST_SEGMENT FALSE;
RIPUP_RETAIN_BONDWIRE FALSE;
RIPUP_SYMBOLS ALWAYS;
Missing symbol has error FALSE;
SCHEMATIC_DIRECTORY /schematic/allegro';
BOARD_DIRECTORY '';
#1   WARNING(SPMHNI-316): Property warning detected.
WARNING(SPMHNI-217): Problems with net 'DDR3BOT_ODT'. Error with net property 'RELATIVE_PROPAGATION_DELAY' and value '100 mil:4 mil;500 mil:8 mil;6000 mil:12 mil': 'expected syntax is :::::'.

2、导入后去除了元件，但无用的引线未删除。
请大侠帮忙

不明白呵呵！