图片上传报错

报错信息：

VM6374:1 uploadFile:fail createUploadTask:fail Error: Invalid URL passed to App.getProxyForURL()’

upFileHandler () {

    wx.chooseImage({

        count: 1, 

        success (res) {

            const tempFilePaths = res.tempFilePaths

            wx.uploadFile({

                url: ‘’,

                filePath: tempFilePaths[0],

                name: ‘image’,

                formData: {

                    ‘imgIndex’: 0

                },

                header: {

                “Content-Type”: “multipart/form-data”  

                },

                success: function (res) {

                    var data = JSON.parse(res.data);

                }

            });

        }

    })

}