代码健壮性。

@@ -857,7 +857,7 @@ const _getBasicDescription = (productDescBo) => {
 const _getDescriptionDataBySizeInfo = (sizeInfo) => {
 const _getDescriptionDataBySizeInfo = (sizeInfo) => {
     let description = {};
     let description = {};
 
 
-    if (!sizeInfo.productDescBo.erpProductId) {
+    if (!sizeInfo.productDescBo || !sizeInfo.productDescBo.erpProductId) {
         return description;
         return description;
     }
     }