鸿蒙NEXT版本api12的request.uploadFile报错13400001，file operation error ，后端服务也没收到接口请求

// 上传图片

 let uploadTask: request.UploadTask;

   let uploadConfig: request.UploadConfig = {

     url: this.uploadUrl,//接口已测试用postman正常上传图片

     header: { 'Accept': '*/*',"Content-Type": 'multipart/form-data','Authorization':AppStorage.get('token') },

     method: ​​http.RequestMethod.POST​​,

     files: [{

     filename: '1730648375163_566',

     type: 'png',

     name: 'file',

     uri: `internal://cache/1730648375163_566.png`

     //在Device File Browser沙箱有/data/app/el2/base/haps/entry/cache/1730648375163_566.png，1730648375163_566.png图片权限是-rw-r--r--

   }],

     data: [],

   };

   try {

     request.uploadFile(context, uploadConfig).then((data) => {

       uploadTask = data;

       uploadTask.on("progress", (size, tot) => {

         this.msgHistory += `上传进度：${size}/${tot}\r\n`;

       });

       uploadTask.on("complete", () => {

         this.msgHistory += "上传完成\r\n";

       });

     }).catch((e:BusinessError) => {

       this.msgHistory += "请求失败：" + e.message + "\r\n";

     });

   } catch (err) {

     this.msgHistory += 'err.code : ' + err.code + ', err.message : ' + err.message;

   }