我试图安装julia “ https://datatofish.com/add-julia-to-jupyter/” 和编码，但我有此错误
(v1.1) pkg> add IJulia
Cloning default registries into `C:\Users\hp\.julia`
Cloning registry from "https://github.com/JuliaRegistries/General.git"
ERROR: failed to clone from https://github.com/JuliaRegistries/General.git, error: GitError(Code:ERROR, Class:OS, failed to send request: A connection with the server could not be established
)
(v1.1) pkg>