How to fix "Your Ruby version is 2.3.0, but your Gemfile specified 2.2.5" while server starting

Question

I am getting this error while running server, how do I fix this?

I don't know if you have already fixed this issue but if not, please read this article . https://makandracards.com/makandra/21545-rbenv-how-to-switch-to-another-ruby-version-temporarily-per-project-or-globally — CHRIS LEE, Dec 13 '17 at 14:36

Tan Nguyen · Accepted Answer · 2019-01-24T02:36:55.493

133

You better install Ruby 2.2.5 for compatibility. The Ruby version in your local machine is different from the one declared in Gemfile.

If you're using rvm:

rvm install 2.2.5
rvm use 2.2.5

else if you're using rbenv:

rbenv install 2.2.5
rbenv local 2.2.5

else if you can not change ruby version by rbenv, read here

edited Jan 24 '19 at 02:36

answered Jun 20 '16 at 05:16

Tan Nguyen

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Backward compatibility is not an issue, I think. If it were the opposite (Gemfile specifying 2.3.0 and only 2.2.5 installed) we would have some issues, for sure. – Ed de Almeida Jun 20 '16 at 05:22
@EddeAlmeida what if I don't want to change the Gemfile? Like it's a project with multiple people? Or an open-source project – Emile Bergeron Dec 20 '16 at 02:50
Then install Ruby 2.2.5, create a private bundle for your app and go ahead, @EmileBergeron. – Ed de Almeida Dec 20 '16 at 02:55
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These situations are exactly the reasons why I always suggest people to have a separate bundle to each application. – Ed de Almeida Dec 20 '16 at 02:58
1

I was having an issue between the local version of Ruby and the versions of Ruby that Heroku allows. I'm new-ish ro Ruby, Rails, and RVM, so this took me a bit to figure out. Thanks a TON, Tan. Specifically, no other answer I found in a couple hours of poking around mentioned the rvm use command. – Henry Edward Quinn IV Jan 20 '17 at 15:24
this caused my mac to ask me to re install rails even though it's already installed "Rails is not currently installed on this system" – Ayrad May 17 '17 at 01:36
rbenv install - doesn't work, install isn't a supported command. – mr-sk Jun 27 '17 at 16:26
I tried the above on rbenv and it didn't work for me. Turns out I was using rvm and not rbenv although both were installed. Make sure you upgrade the right ruby version manager' ruby version – Saurav Prakash Feb 21 '20 at 23:23
after having installed it, `rvm use 2.6.1` gives _Required ruby-2.7.0 is not installed._ :) how can I fix this ? – gordie Feb 27 '20 at 22:33
This may be off topic for some users but I had to do these commands as well. `rvm get stable --auto-dotfiles` then `bundler update --bundler` ... and then, I could use `rvm use 3.0.0` again, without errors/warnings – m_floer Mar 02 '21 at 07:05
In my case adding correct paths (`$HOME/.rbenv/shims` and `$HOME/.rbenv/bin`) to my .zshrc fixed the problem. Thanks @Tan – Dmitry May 28 '21 at 22:09

score 57 · Answer 2 · answered Aug 07 '17 at 10:17

57

If you have already installed 2.2.5 and set as current ruby version, but still showing the same error even if the Ruby version 2.3.0 is not even installed, then just install the bundler.

gem install bundler

and then:

bundle install

answered Aug 07 '17 at 10:17

Tarique

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This is it right here! Because if you installed bundler before installing and setting your ruby version, calling `bundle check` or `bundle install` will still be referencing the ruby environment that was used for installing `bundler` originally. Cheers! – Joshua Pinter Oct 11 '18 at 05:09
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Btw, I also had to do `rbenv rehash` after reinstalling bundler. – Joshua Pinter Oct 11 '18 at 05:10
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Wow, I'd expect a missing gem error message then... anyway, thx! – Pengő Dzsó Jan 09 '20 at 19:07
@Tarique I still get the same error after running the suggested commands – java_geek Apr 07 '21 at 06:06
@java_geek It's better to install and switch the ruby version (2.2.5) using rvm or rbenv as already suggested by Tan. Also, make sure to change the desired ruby version in the ".ruby-version" file. Thanks. – Tarique Apr 25 '21 at 17:06

score 41 · Answer 3 · answered Sep 18 '17 at 11:23

41

If you are using rbenv then make sure that you run the "rbenv rehash" command after you set local or global ruby version. It solved the issue for me.

rbenv rehash

answered Sep 18 '17 at 11:23

kahcv

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`asdf reshim` for asdf users – Kaka Ruto Jun 16 '20 at 21:45
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@kahcv I ran rbenv rehash but still get the same error – java_geek Apr 07 '21 at 06:06
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I realized that you need to close the terminal as well after "bundle install" and "rbenv rehash" – Hez Mar 18 '22 at 15:02

score 24 · Answer 4 · answered Jun 20 '16 at 04:44

24

Your Gemfile has a line reading

ruby '2.2.5'

Change it to

ruby '2.3.0'

Then run

bundle install

answered Jun 20 '16 at 04:44

Ed de Almeida

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how to upgrade that? iam already installed railsinstaller from this link https://s3.amazonaws.com/railsinstaller/Windows/railsinstaller-3.1.1.exe – unknown Jun 20 '16 at 08:08
I believe Aptana Studio has a command to update, but I never used it. – Ed de Almeida Jun 21 '16 at 18:34
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Your suggestion didn't do anything for me, but running `gem update` fixed the error message for me. – Allison Apr 29 '18 at 02:59
Great that it is all fine now. Really sorry my suggestion didn't help. – Ed de Almeida Apr 29 '18 at 11:22
it provide another error 'gem file will remain installed in for inspection. an error occured while installing rjb -v '1.5.5' --source 'https://rubygems.org' succeed before bundling. – Anjani Barnwal Aug 16 '18 at 08:34
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is `.ruby-version` also related ? – Anthony Kal Oct 30 '18 at 10:05
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Yes, @AnthonyKal. .ruby-gemset states the name of the private bundle and .ruby-version the ruby version it will be based on. – Ed de Almeida Oct 30 '18 at 10:44
it can break any other gems installed and depends on the newer version. – Krishnadas PC May 05 '21 at 12:11

score 5 · Answer 5 · answered Oct 25 '20 at 03:39

A problem I had on my Mac using rbenv was that when I first set it up, it loaded a bunch of ruby executables in /usr/local/bin - these executables loaded the system ruby, rather than the current version.

If you run

which bundle

And it shows /usr/local/bin/bundle you may have this issue.

Search through /usr/local/bin and delete any files that start with #!/user/bin ruby

Then run

rbenv rehash

score 3 · Answer 6 · answered Jun 16 '20 at 21:47

3

Two steps worked for me:

gem install bundler

bundle install --redownload # Forces a redownload of all gems on the gemfile, assigning them to the new bundler

answered Jun 16 '20 at 21:47

Kaka Ruto

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score 3 · Answer 7 · answered Sep 03 '20 at 21:00

3

it can also be in your capistrano config (Capfile):

set :rbenv_ruby, "2.7.1"

answered Sep 03 '20 at 21:00

Dorian

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score 2 · Answer 8 · answered Jun 20 '16 at 04:43

2

Add the following to your Gemfile

ruby '2.3.0'

answered Jun 20 '16 at 04:43

blnc

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How do you access your Gemfile and change this line. Is it a command that should be run? Is it done with a text editor? etc. – HumanZero HumanZero Apr 01 '22 at 10:26

score 2 · Answer 9 · answered Sep 07 '20 at 15:06

I had this problem but I solved it by installing the version of the ruby that is specified in my gem file using the RVM

    rvm install (ruby version)

After the installation, I use the following command to use the the version that you installed.

    rvm --default use (ruby version)

You have to install bundler by using the following command in order to use the latest version

    gem install bundler

After the above steps, you can now run following command to install the gems specified on the gemfile

    bundle install

score 2 · Answer 10 · answered Mar 07 '22 at 15:31

Had same issue. I'm using rbenv and which ruby would show the rbenv version:

/Users/Mahmoud/.rbenv/shims/ruby

which bundle though would show:

/usr/local/bin/bundle

After looking in every possible place, turns out my problem was that I needed to update path in ~/.zshrc in addition to ~/.bash_profile (where I originally had the changes)

if you're running zsh add those two lines in ~/.zshrc (or the equivalent file) in addition to ~/.bash_profile

export PATH="$HOME/.rbenv/shims:$PATH"
eval "$(rbenv init -)"

After saving, quit terminal and relaunch before retrying. Hopefully this would help.

score 1 · Answer 11 · answered Dec 07 '17 at 11:50

1

I am on Mac OS Sierra. I had to update /etc/paths and add /Users/my.username/.rbenv/shims to the top of the list.

answered Dec 07 '17 at 11:50

villy393

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score 0 · Answer 12 · answered Feb 18 '18 at 11:49

0

For $ Your Ruby version is 2.3.0, but your Gemfile specified 2.4.1. Changed 2.4.1 in Gemfile to 2.3.0

answered Feb 18 '18 at 11:49

Arushi Singhal

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score 0 · Answer 13 · answered Jan 29 '22 at 03:55

If you have some dependency on the version of the Ruby , then install the appropriate version. otherwise change the version in the gemfile in the current directory.

rbenv install <required version>
rbenv local <required version>

Even after installation it was showing the same error for me, so I just restart the mac, then do the bundle install, it works :)

it should show something like this

   <user>@<repo>% rbenv versions 
      system
    * 2.3.7 (set by <app>)

How to fix "Your Ruby version is 2.3.0, but your Gemfile specified 2.2.5" while server starting

13 Answers13

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