下载时FileTransfer中的错误代码1

Question

在错误代码中需要帮助。我正在尝试从源服务器下载图像（只是来自某个网​​站的图像）。始终在文件传输中获取错误代码1。我知道错误代码1表示找不到文件。但该文件可用。请找到我的代码和错误。

public downloadImage() {

   var url = "http://weknowyourdreams.com/images/mountain/mountain-04.jpg";


  var targetPath = '/assets/Images/menucategory/';


  const fileTransfer: TransferObject = this.transfer.create();


  fileTransfer.download(url,targetPath + 'file.jpg' )

.then(data => 

{
    this.presentToast('Image succesful downloaded.');
  },

 err => {
  console.log('download error source', err.source);

  console.log('download error targer', err.target);

  console.log('download error code', err.code);

  console.log('download error ', err);

    this.presentToast('Error while downloading file.');
  });
}

错误详情：

体：空 代码：1 例外：空 HTTP_STATUS：空 源：＆＃34; http://weknowyourdreams.com/images/mountain/mountain-04.jpg＆＃34; 目标：＆＃34; /assets/Images/menucategory/file.jpg"