Your Ruby Version Is 2.1.0, But Your Gemfile Specified 2.0.0

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

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

Your Ruby version is 2.0.0, but your Gemfile specified 2.1.0

Run

gem install bundler

or

gem update bundler 

which may fix your problem.

For all new installed versions of Ruby you should update or install a new bundler.

Why do I get the error Your Ruby version is 2.0.0, but your Gemfile specified 2.2.2 although I have 2.2.2 installed

I finally solved my problem using this thread Bundler not working with rbenv, could not find [gem],

by using these commands after reinstalling rbenv:

• gem install --no-ri --no-rdoc bundler
• rbenv rehash
• bundle --path=vendor/bundle

rbenv Your Ruby version is 2.0.0, but your Gemfile specified 2.1.2

What version of ruby are you using?


ruby -v


It sounds like the Gemfile has a ruby requirement listed for 2.1.2. You may need to install that version:


rbenv install 2.1.2


Then you may need to tell rbenv to use that version for that project:


rbenv local 2.1.2


It looks like the rbenv team/community decided against adding support for ruby versions specified in the Gemfile. Reference: https://github.com/sstephenson/rbenv/issues/223

rbenv Your Ruby version is 2.0.0, but your Gemfile specified 2.1.2 but the only version installed is 2.1.2

You just need to install Ruby 2.1.2. You can have multiple Ruby versions installed at the same time. If you have ruby-build installed you can do the following: install 2.1.2, rehash your shims, and then tell rbenv to use 2.1.2 for this project.

rbenv install 2.1.2
rbenv rehash
rbenv local 2.1.2

You're going to have to gem install bundler and then bundle install on your project afterwards.

Your Ruby version is 2.1.0, but your Gemfile specified 2.0.0

You may need to update your version of ruby-build to make sure you have the update where ruby-2.0.0-dev switched to follow the ruby_2_0_0 branch.

Try running ruby-build --version and make sure it's one of these (or later):

• v20130907
• v20130901
• v20130806
• v20130628
• v20130518
• v20130514
• v20130501
• v20130408
• v20130227
• v20130226
• v20130225

If not, run brew upgrade ruby-build.

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