[Sublime Text 3 最新版] There are no packages available for installation

在执行Install Package时弹了如下的窗口

debug info 如下：

Package Control: Fetching list of available packages and dependencies
  Platform: osx-x64
  Sublime Text Version: 3176
  Package Control Version: 3.3.0
Package Control: Download Debug
  URL: https://packagecontrol.io/channel_v3.json
  Timeout: 30
  Resolved IP: [Errno 8] nodename nor servname provided, or not known
Package Control: Urllib Debug Proxy
  http_proxy: 
  https_proxy: 
  proxy_username: 
  proxy_password: 
Package Control: Found previously exported CA bundle at /Users/mayor/Library/Application Support/Sublime Text 3/Packages/User/oscrypto-ca-bundle.crt (270861 bytes)
Package Control: Urllib HTTPS Debug General
  Connecting to packagecontrol.io on port 443
Package Control: Error downloading channel. URL error [Errno 8] nodename nor servname provided, or not known downloading https://packagecontrol.io/channel_v3.json.

我在浏览器访问https://packagecontrol.io/channel_v3.json是没问题的，有遇到同样问题的吗？