I installed Ruby (v2.6.3) and Rails (v5.2.3).
Even completed a training project on this framework.
Then he took up a working project and first of all executed the command bundle install.
All modules were delivered normally, except one "sassc-2.0.1"
Installation fails with this error:
sassc-2.0.1 requires ruby version >= 2.3.3, which is incompatible with the current version, ruby 2.3.1p112
That is, I chose one version, and in fact uses a different version. I can't understand the reason for this.
But I didn't give up the first time. I tried to check the ruby version in different ways:
(1) Get ruby version
$> ruby -v
ruby 2.6.3p62 (2019-04-16 revision 67580) [x86_64-linux]
(2) Get path to bin for ruby
$> which ruby
/home/vdenisov/.rvm/rubies/ruby-2.6.3/bin/ruby
(3) Get path to bin for bundle
$> which bundle
/home/vdenisov/.rvm/rubies/ruby-2.6.3/bin/bundle
All these commands give out that the current version of ruby is 2.6.3
However, my friend advised me to do one more check
(4) WTF ???
$> /usr/bin/ruby -v
ruby 2.3.1p112 (2016-04-26) [x86_64-linux-gnu]
P.S.: before that I programmed in nodejs and there is a version Manager "nvm" - when you run the command "nvm use a.b.c" in the system, always use the nodejs version of "a.b.c" (the same I expected from the "rvm").
/usr/bin/ruby -v gives you the version of ruby installed in your operating system.
It seems that you already run rvm use --default 2.6.3 because your ruby points to rvm location.
Ruby environment manager RVM supports configuration inside following files: .rvmrc, .versions.conf, .ruby-version, Gemfile. More here: https://rvm.io/workflow/projects
Check these files, it's good practice to set ruby version inside .ruby-version or Gemfile.