问答 iaomi Vela JS 无法调用录音能力问题

[sushengren]

我想调用手表的录音功能，但是安装官方的文档却报错了，求解
手表：Xiaomi Watch S4
文档地址：https://iot.mi.com/vela/quickapp/zh/features/system/record.html
源代码：

record.start({
duration: 10000,
sampleRate: 8000,
numberOfChannels: 1,
encodeBitRate: 128000,
format: "pcm",
success: function (data) {
console.log(handling success: ${data.uri})
},
fail: function (data, code) {
console.log(handling fail, code = ${code}, errorMsg=${data})
},
complete: function () {
console.log(handling complete)
}
})

报错日志：

[09/30 19:07:30] [47] [ap] [AIOTJS] [jse_dump_obj:786] TypeError: cannot read property 'start' of null
[09/30 19:07:30] [47] [ap] [AIOTJS] [jse_dump_obj:786] at routeDetail (/data/quickapp/app/com.application.watch.demo/pages/index/index.js:90)
at apply (native)
at <anonymous> (@aiot/framework)
at click (/data/quickapp/app/com.application.watch.demo/pages/index/index.js:166)