noble/bleno

TypeError: Object #<Object> has no method 'emit'

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#297 建立於 2017年4月26日

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 (4 留言) (0 反應) (0 負責人)JavaScript (2,083 star) (465 fork)batch import
help wanted

描述

When I set my BLE module as the peripheral mode and run the echo example.

If I subscribe the indication and then unsubscribe it, the following error will occur.

root: /home/ubuntu/test/node_modules/bleno/lib/hci-socket/gatt.js:914 handleAttribute.emit('unsubscribe'); ^ TypeError: Object # has no method 'emit'

貢獻者指南

技術棧
javascriptnodejs
領域
backend
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
2
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
under 1 hour
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
Understanding of Node.js EventEmitterBasic knowledge of BLE (Bluetooth Low Energy)
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
60
研究方向
The error occurs at gatt.js:914 where `handleAttribute.emit('unsubscribe')` is called but handleAttribute does not have an emit method. This suggests that handleAttribute is not an instance of EventEmitter. Investigate the definition of handleAttribute in gatt.js to ensure it properly inherits from EventEmitter. Look for similar patterns in the codebase. Since the issue is open and no PRs are linked, this is available for a first time contributor to fix by ensuring handleAttribute is an EventEmitter.