在使用getBackgroundAudioManager进行播放背景音乐时出现10001错误码，播放不了，使用的是iphone7，iOS11.4.1，微信客户端7.0.11

errCode: 10001

errMsg: "playerErrCode:9, systemErrCode:1852077119, domain:ASCII OSStatus:ndt?, description:The operation couldn’t be completed. (ASCII OSStatus:ndt? error 1852077119.)"

src: "http://fs.51-xuetang.com/course_ware/1240830823910502401/9514d71a0f2e4cb9bb4a2ca1aca5e282/study/audios/35143eb22bfb4c2d841b5564a3c3ae13.mp3"