How to create local copy of Sockets to get at source to determine code path for error codes

New to Julia
1

The intent is to convert an error code to an error message.
All errors return Unknown System Error
julia>Sockets.DNSError(“nebula.mit.edu”,2)

DNSError: nebula.mit.edu, Unknown system error 2 (Unknown system error 2)

I tried “dev” but I got this error:
(@v1.9) pkg> dev Sockets

ERROR: The following package names could not be resolved:

  • Sockets (6462fe0b-24de-5631-8697-dd941f90decc in manifest but not in project)
2

Many standard libraries, including Sockets, live in the JuliaLang/julia repository, so cloning that repo gives you Sockets too, see stdlib/Sockets.

3

Thank you!