How can I create an old rails application when the current version is 3.0.3

Question

I have two different Rails Rubygems installed on my Linux OS [2.3.8 and 3.0.3], but the current version of Rails is 3.0.3. So you can create a Rails application using the style generator 2.3.8: rails testappnot new one rails new testapp:?

Answer 1

I would recommend installing RVM and setting up different gemsets for each version of Rails. This way you can easily switch between versions of Rails simply by switching gemsets.

Answer 2

Rails 2.3.8 :

rails _2.3.8_ testapp

Answer 3

: Rails 2.3 Rails 3?

:

:

• Gemfile ,     "", "2.3.9"
     gem "sqlite3-ruby",: require = > "sqlite3"
• "bundle install"
• "bundle exec rails". rvm .

rvm.