怎么了

Question

我不知道这是什么问题，有人知道为什么吗？ 说输入错误图片为空

router.post('/add-product', function (req, res) {

var imageFile = typeof req.files.image !== "undefined" ? req.files.image.name : "";

req.checkBody('title', 'Title must have a value.').notEmpty();
req.checkBody('desc', 'Description must have a value.').notEmpty();
req.checkBody('price', 'Price must have a value.').isDecimal();
req.checkBody('image', 'You must upload an image').isImage(imageFile);

var title = req.body.title;
var slug = title.replace(/\s+/g, '-').toLowerCase();
var desc = req.body.desc;
var price = req.body.price;
var category = req.body.category;

var errors = req.validationErrors();