Unable to Install freetaxii-client Due to Missing Dependencies

[stcrestrada]

Description:
I attempted to install the freetaxii-client package using go get github.com/freetaxii/freetaxii-client, but encountered several errors related to missing dependencies.

Error Messages:
I received the following errors:

go: github.com/freetaxii/freetaxii-client imports
code.google.com/p/getopt: cannot find module providing package code.google.com/p/getopt
go: github.com/freetaxii/freetaxii-client imports
github.com/freetaxii/freetaxii-client/lib imports
github.com/freetaxii/libtaxii/messages/collectionMessage: cannot find module providing package github.com/freetaxii/libtaxii/messages/collectionMessage
go: github.com/freetaxii/freetaxii-client imports
github.com/freetaxii/freetaxii-client/lib imports
github.com/freetaxii/libtaxii/messages/discoveryMessage: cannot find module providing package github.com/freetaxii/libtaxii/messages/discoveryMessage
go: github.com/freetaxii/freetaxii-client imports
github.com/freetaxii/freetaxii-client/lib imports
github.com/freetaxii/libtaxii/messages/pollMessage: cannot find module providing package github.com/freetaxii/libtaxii/messages/pollMessage
go: github.com/freetaxii/freetaxii-client imports
github.com/freetaxii/freetaxii-client/lib imports
github.com/freetaxii/libtaxii/messages/statusMessage: cannot find module providing package github.com/freetaxii/libtaxii/messages/statusMessage

Issue Details:

• The code.google.com/p/getopt package no longer exists as the service has been deprecated.
• There appear to be broken dependencies within github.com/freetaxii/libtaxii/messages/*Message.

Objective:
Given that development on this repository has been inactive for quite some time, is there an alternative solution or a recommended fork that addresses these missing dependencies? Alternatively, could guidance be provided on resolving these issues or using another library for TAXII interactions in Go?

Environment:

• Go version: 1.23
• OS: MACOS Sonoma

Thank you for your assistance!