403 error (nokociri) installing Zat on Ubuntu

[dhleong]

Fetching: nokogiri-1.13.3-x86_64-linux.gem (100%)
ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)
    bad response Forbidden 403 (https://api.rubygems.org/quick/Marshal.4.8/nokogiri-1.13.3-x64-unknown.gemspec.rz)

[sabatale]

Are you on Ruby 2.5?

I got the same error and tried to downgrade to 2.4 but then...

Fetching: racc-1.6.0.gem (100%)
ERROR:  Error installing zendesk_apps_tools:
        racc requires Ruby version >= 2.5.

I ended up manually installing version-specific gems 🤪

[Captain0X]

Fetching: nokogiri-1.13.3-x86_64-linux.gem (100%)
ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)
    bad response Forbidden 403 (https://api.rubygems.org/quick/Marshal.4.8/nokogiri-1.13.3-x64-unknown.gemspec.rz)

Hey man,you should update ruby to latest version
I have slove this issue by step:
1.sudo add-apt-repository ppa:brightbox/ruby-ng
2.sudo apt-get update
3.sudo apt-get purge --auto-remove ruby
4.sudo apt-get install ruby2.7 ruby2.7-dev

`
root@ecs:~ gem --version
3.1.6
root@ecs:~ gem install nokogiri --platform=ruby -- --use-system-libraries
Fetching mini_portile2-2.8.0.gem
Fetching nokogiri-1.13.8.gem
Fetching racc-1.6.0.gem
Successfully installed mini_portile2-2.8.0
Building native extensions with: '--use-system-libraries'
This could take a while...
Successfully installed racc-1.6.0

`