有没有离线安装HEX的变通方法? D:\Paperless\PeopleCost\server>mix local.hex --force
** (Mix) httpc request failed with: {:failed_connect, [{:to_address, {'repo.hex.pm', 443}}, {:inet, [:inet], :etimedout}]}
Could not install Hex because Mix could not download metadata at https://repo.hex.pm/installs/