问题
Environment
- Ubuntu 16.04 xenial
- Linux Kernel: 4.4.0-22-generic
- ruby --version
ruby 2.3.0p0 (2015-12-25) [x86_64-linux-gnu]
Steps to replicate
sudo apt-get install ruby-full
rhc setup
returns:
/var/lib/gems/2.3.0/gems/commander-4.2.1/lib/commander/user_interaction.rb:328: warning: constant ::TimeoutError is deprecated
After uploading default public key, it shows:
Checking for git ... found git version 2.7.4
Checking common problems ./var/lib/gems/2.3.0/gems/net-ssh-2.9.2/lib/net/ssh/transport/session.rb:67:in
initialize': Object#timeout is deprecated, use Timeout.timeout instead. /var/lib/gems/2.3.0/gems/net-ssh-2.9.2/lib/net/ssh/transport/session.rb:84:ininitialize': Object#timeout is deprecated, use Timeout.timeout instead. . done
When running:
rhc --help
It returns:
/var/lib/gems/2.3.0/gems/commander-4.2.1/lib/commander/user_interaction.rb:328: warning: constant ::TimeoutError is deprecated
回答1:
It looks like a gem uses Object#timeout under the hood, which is deprecated. It's recommended to now use Timeout.timeout, like the error says.
As far as what you should do - this is just a deprecation warning, not an error, so probably nothing is broken.
If the warning is really bothering you, you could edit the gem source at /var/lib/gems/2.3.0/gems/net-ssh-2.9.2/lib/net/ssh/transport/session.rb and replace the timeout calls with Timeout.timeout (or fork the gem and make the same changes). The author might appreciate a pull request, if you're eager. But I personally wouldn't worry about this.
来源：https://stackoverflow.com/questions/37626020/rhc-setup-returns-warning-constant-timeouterror-is-deprecated