ionic3用FileTransfer做文件上传

Question

ionic3文件上传，用FileTransfer插件报错

import {FileTransfer, FileUploadOptions, FileTransferObject} from '@ionic-native/file-transfer'; 引入正常。
constructor(

public navCtrl: NavController,
private alertMsgService: AlertMsgService,
public actionSheetCtrl: ActionSheetController,
public camera: Camera,
public httpService: HttpService,
public navParams: NavParams,
public alertCtrl: AlertController,
public transfer: FileTransfer,
//public file :File,

) {

}

这个问题如何解决，或者有其他的上传方法吗？