Can I specify my Rails version using .asdf version manager?

Question

Currently I have asdf for managing my versions of Ruby (2.6.5), nodejs, and yarn. I am trying to follow a Rails tutorial with version 5.2.1.

Running gem install rails -v 5.2.1 and rails new appname version=5.2.1.

It still says version 6.0.2.1 application. I am new to Ruby on Rails so there could be something obvious I'm missing or I'm making a bigger deal out of this than it needs to be. But I'd like to follow this rather long tutorial as close as possible. I believe it is installing the correct version of rails under this path.

~/.asdf/installs/ruby/2.6.5/lib/ruby/gems/2.6.0/gems/rails-5.2.1/

Any help would be greatly appreciated. Medium blog ...

Answer 1

Try this

rails _5.2.1_ new appname