asdf message "No version set for command rails" when running Rails server

Question

I am trying to run my rails server (rails s) in my Rails 3.2.13 application after having updated my Ruby version in /.ruby-version and /.tools-versions, but get the following message:

asdf: No version set for command rails

you might want to add one of the following in your .tool-versions file:

ruby 2.2.4

However, I had updated ruby in both version files to 2.3.0 and it is reflected in both. When I type asdf which ruby the ruby version is also 2.3.0.

I'd like help understanding why rails s prompts this asdf message, and what I'm missing with how to fix it so that I can run the rails server.

The `asdf-ruby` plugin: https://github.com/asdf-vm/asdf-ruby — Tim Abell, Apr 06 '20 at 09:53

score 15 · Answer 1 · answered Oct 21 '19 at 18:43

15

Try this:

asdf reshim ruby

Then run rails s again

answered Oct 21 '19 at 18:43

Jimmy

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This worked for me, but I had to also restart my shell – ewH Nov 18 '20 at 15:49

score 2 · Answer 2 · answered May 15 '21 at 16:01

2

This did the trick for me in such situation where reshim did not work.

gem update --system

Credits to https://github.com/asdf-vm/asdf-ruby/issues/127#issuecomment-644399342

answered May 15 '21 at 16:01

akostadinov

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asdf message "No version set for command rails" when running Rails server

2 Answers2