-Aaron-Lee/WiFi_Kit_series/releases/download/v3.3.0/package_heltec_esp32_index.json”: dial tcp 192.168.1.106:443: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond解决Arduino IDE 2.0无法安装Heltec ESP32板卡库的Error：2 UNKNOWN

这里写自定义目录标题

一、问题描述：

为了在arduino IDE 2.0下使用heltec esp32 wifi板，需要给IDE环境安装board库及library库 ,首先需要去heltec的对应板卡下官方文档查找附加板卡的URLs地址。
如下为heltec的文档：
https://docs.heltec.org/en/node/esp32/quick_start.html#via-arduino-board-manager

在IDE输入 ESP32 package URL: https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/releases/download/0.0.7/package_heltec_esp32_index.json

在boards manger选择heltec esp32安装失败。

上图为报错截图
arduino ide 2.0报错信息：
Downloading packages
Failed to install platform: Heltec-esp32:esp32.
Error: 2 UNKNOWN: Get “https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/releases/download/0.0.7/esp32-0.0.7.zip”: read tcp 10.2.61.106:59929->20.205.243.166:443: wsarecv: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.

二、问题解决

1、https://github.com访问问题，需要设置VPN获取网站访问权限。

2、针对IDE错误信息：Error: 2 UNKNOWN: Get “https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/releases/download/0.0.7/esp32-0.0.7.zip”

问题分析，该文件为https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/releases/download/0.0.7/package_heltec_esp32_index.json地址下解析出的压缩包，ide无法下载并报错，但尝试使用chrome浏览器可以正常下载，为199M。

另辟蹊径，我直接从报错信息里复制压缩包地址：https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/releases/download/0.0.7/esp32-0.0.7.zip并且粘贴在arduino IDE 2.0的“File-Preferences-settings-Additional Boards Manager URLs: ”


继续安装，成功！
恭喜啦

链接：
https://docs.heltec.org/en/node/esp32/quick_start.html#via-arduino-board-manager
https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/