getfield問題

請問 為什麼加入  value13 = getfield("現金股利"); 和 value14 = getField("股票股利"); 後，程式無法找出結果，但去掉這兩列後，又可正常執行？謝謝!

settotalBar(365);

value1 = getfield("除息日期");

value2 = getBarOffset(value1);

value10 = close[value2];

value11 = average(close[value2],60);

value12 = close[value2+1];

value13 = getfield("現金股利");

value14 = getField("股票股利");

ret=1;

outputField(1,value1,0,"除息日");outputField(2,-value2,0,"過除日");outputField(3,value10,2,"除日收價");outputField(4,value11,2,"除日SMA60價");outputField(5,value12,2,"除日前一收價");outputField(6,value13,2,"現金股利");outputField(7,value14,2,"股票股利");