问从猫鼬那里得到一个奇怪的验证错误

EN

{"data":
{"errors":{"picture":
{"message":"Path `picture` is required.",
"name":"ValidatorError","properties":
{"type":"required","message":"Path `{PATH}` is 
required.","path":"picture"},"kind":"required","path":"picture"},
"name":{"message":"Path `name` is 
 required.","name":"ValidatorError","properties":
{"type":"required","message":"Path `{PATH}` is     
required.","path":"name"},"kind":"required","path":"name"}},
"message":"Product validation 
failed","name":"ValidationError"}

var mongoose = require('mongoose'); 
var productSchema = new mongoose.Schema({
name: {type: String, required: true}, 
category: {type: String, default: ''}, 
price: { type: Number, default: 0}, 
    picture: { type: mongoose.Schema.Types.Mixed, required: true},  
    morePictures: [mongoose.Schema.Types.Mixed], 
    quantity: {type: Number, default: 0}, 
    status: { 
    type: String, 
    enum: ['Pending', 'In Progress', 'Cancelled', 'Done'], 
    default: 'Pending' 
    }, 
   date: { type: Date, default: Date.now}, 
   description: { type: String}, 
    owner: {type: String}
   }); 

 var Product = mongoose.model('Product', productSchema); 

 module.exports = Product; 

module.exports.createProduct = function (req, res){
  var product = new Product(req.body); 
   console.log(req.body); 
   product.save( function (err, newProduct){
     if(err){
        return sendJsonResponse(res, 404, err); 
    }
    else 
        return sendJsonResponse(res, 201, newProduct);
 })
}

```javascript

console.log('Welcome to the ProductController'); 

*** some code here ***

$scope.addProduct = function (){ 

    var newProduct = {

        name: $scope.product.name, 

        category: $scope.product.category, 

        price: $scope.product.price, 

        picture: $scope.product.picture, 

        morePictures: [], 

        quantity: 10,  

        status: "Pending", 

        date: Date.now(), 

        description: $scope.product.description, 

        owner: "Joel Alexandre Khang Zulbal"

    }; 

    console.log(newProduct); 

    alert("Passing variable..."); 

    $http({

            url: '/api/products', 

            method: 'POST', 

             headers: {

                   'Content-Type': 'application/x-www-form-urlencoded'

                 },

            data: newProduct

        })

         .then( function onSuccessCallback (products){

                $scope.products.push(products);

                    alert("Success Insertion");

             }, function onErrorCallback (error){

                    console.log(error); 

                    alert("Insertion failed!!"); 

             }); 

        $scope.product = {}; 

        $scope.close(); 

}

   *** some other code here ***

I don't know how to fix that, any help will be verry gratefull. 

```javascript