wx.requestSubscribeDeviceMessage 调用失败 ， 调用时不出现弹窗，直接进入失败的回调，是什么原因 ？errmsg:requestSubscribeDeviceMessage:fail是什么
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- wx.requestSubscribeDeviceMessage: 小程序/开发/API/开放接口/订阅消息/wx.requestSubscribeDeviceMessage
- wx.requestSubscribeDeviceMessage#功能描述: 小程序/开发/API/开放接口/订阅消息/wx.requestSubscribeDeviceMessage
- wx.requestSubscribeDeviceMessage#参数: 小程序/开发/API/开放接口/订阅消息/wx.requestSubscribeDeviceMessage
- wx.requestSubscribeDeviceMessage#错误码: 小程序/开发/API/开放接口/订阅消息/wx.requestSubscribeDeviceMessage
- wx.requestSubscribeDeviceMessage#示例代码: 小程序/开发/API/开放接口/订阅消息/wx.requestSubscribeDeviceMessage
能提供失败回调吗