How update the ruby version on a old rails project

Question

I have a rails 3 app that was made with 2.0.0-p0 ruby.

Now i would like to update just the ruby to 2.2.2

I changed already the local and global ruby on rbenv to 2.2.2.

There is a way or i have to keep using the 2.0.0-p0 on this app?

right so why when i try to start the ap aways show this message: rbenv: rails: command not found The `rails' command exists in these Ruby versions: 2.0.0-p0 — dcalixto, Sep 02 '15 at 20:15

score 1 · Accepted Answer · answered Sep 02 '15 at 20:24

You have switched to another version of Ruby and you are probably using a different gemset (probably an empty one). Try running:

bundle install

Note that after switching to a newer version of Ruby, some of your old code might not be compatible, i.e. need debugging.

Hope this help!

1 Answers1