Gemfile is not using the specified ruby version - ruby-on-rails

I'm making a project and when I run a generate command I get the following error:
fullpath: /Users/adamgoldberg/shopify-sinatra-app/theappearsystemcontrol6
Your Ruby version is 2.3.1, but your Gemfile specified 2.2.2
Bundler::RubyVersionMismatch: Your Ruby version is 2.3.1, but your Gemfile specified 2.2.2
/Users/adamgoldberg/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/lib/bundler/definition.rb:417:in `validate_ruby!'
/Users/adamgoldberg/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/lib/bundler.rb:91:in `setup'
/Users/adamgoldberg/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/lib/bundler/setup.rb:19:in `<top (required)>'
/Users/adamgoldberg/.rbenv/versions/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
/Users/adamgoldberg/.rbenv/versions/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'bundler: failed to load command: rake (/Users/adamgoldberg/.rbenv/versions/2.3.1/bin/rake)
I have to use ruby version 2.3.1 for my project so I have attempted changing my Gemfile version.
my gemfile now contains this:
ruby "~> 2.3"
I have tried all sorts of commands so that the Gemfile recognises that I want to use a different ruby version. I have tried:
bundle update
bundle install
gem bundle install
rbenv rehash
even my Gemfile.lock says it is using 2.3.1:
RUBY VERSION
ruby 2.3.1p112
I have even deleted the project and started again.
Please help
An update: I deleted the project and restarted. here are the exact steps I took from my home directory
ruby -v: #2.3.1
git clone https://github.com/kevinhughes27/shopify-sinatra-app.git
gem install shopify-sinatra-app
shopify-sinatra-app-generator new myshop
and the same error as above appeared:
Your Ruby version is 2.3.1, but your Gemfile specified 2.2.2
My Gemfile looks like this:
source 'https://rubygems.org'
gemspec
it's practically empty... I haven't even specified the ruby version
I then ran
bundle install
bundle update
still the same error appears.
I then specified in my Gemspect the ruby version and it now looks like this:
source 'https://rubygems.org'
ruby "2.3.1"
gemspec
but still the same error appears

I don't think you can use version specifiers like that for the Ruby version. I've never seen any examples with that.
Perhaps try it like this if you want v2.3.1:
ruby "2.3.1"

The attempt you're taking here:
ruby "~> 2.3"
seems like the right approach, but you should use an exact Ruby version:
ruby "2.3.1"
It's worth mentioning that you don't necessarily need to manually specify your ruby version anywhere if you don't want to.
updated answer
i cloned the gem and tried installing it. I got the same error. I figured out where the source of the 2.2.2 dependency is. It's in the gem's source code, which for me is ~/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/shopify-sinatra-app-0.3.0. In examples/Gemfile there is a ruby '2.2.2' line.
I tried removing this line, but there was a different error installing activesupport. I think it's likely that the easiest solution for generating an app with this gem would be to install ruby 2.2.2

Related

Ruby-on-Rails: Cannot set correct Ruby Version

Dearest Community.
Here's an odd one, and I cannot figure this one out myself.
I am about to deploy a Ruby-on-Rails app to a production server. I like to keep all versions consistent between development and production as you do.
In my Gemfile I set the Ruby version to 2.7.1 (correctly), and on development I installed 2.7.1 and use that version locally for this specific project. All works just fine! - here's the entry:
Gemfile
source 'https://rubygems.org'
git_source(:github) { |repo| "https://github.com/#{repo}.git" }
ruby '2.7.1'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 6.0.3', '>= 6.0.3.2'
...
The Problem:
On production I installed and use (via rbenv) ruby 2.7.1. And I verified that the version is installed & in use! However, when it try to migrate my database or do any other task for that matter it outputs the following
Your Ruby version is 2.7.0, but your Gemfile specified 2.7.1
I do not even have 2.7.0 installed. So for the sake of it I edited the Gemfile on production to run the test. For the purpose of the test I set the ruby verions to 2.7.0 and run another command that fires up the rack. Now the message is:
Your Ruby version is 2.7.1, but your Gemfile specified 2.7.0
What is happening?! I have never ever had or saw a similar issue before. Any help is much appreciated! Thank you!
Here are the environment details:
$ cat /etc/os-release
NAME="Ubuntu"
VERSION="20.04.1 LTS (Focal Fossa)"
ruby -v
ruby 2.7.1p83 (2020-03-31 revision a0c7c23c9c) [x86_64-darwin19]
$ rails -v
Rails 6.0.3.2
$ bundle -v
Bundler version 2.1.4
I find the best solution is to uninstall all versions of ruby from your ruby version manager (not familiar with rbenv, but you should be able to listed all installed versions then one by one uninstall the ones you don't need until only the one you need remains. If you need multiple versions, best setup a script that will let you quickly switch or setup isolated development environments (basically virtual machines), such that you can be sure it only has the version it needs.
After that, it will either work fine or you'll have an error message that might help pin down the root cause of the issue.

Ruby Version 2.3.3 Gemfile 2.3.0 (Sprockets Update)

I'm a newbie at Ruby on Rails. I'm trying to update the Gem file but it keeps giving me this error.
Your Ruby version is 2.3.3, but your Gemfile specified 2.3.0
The reason I'm trying to update the gem file is because of a security vulnerability .
check your gemfile, there will be
ruby '2.3.0'
you need to change it to
ruby '2.3.3'
more you can read here https://bundler.io/v1.12/gemfile_ruby.html and https://devcenter.heroku.com/articles/ruby-versions
Just change your ruby version at gem file to the version suggested by the error. Let's see if this works

Ruby version error Bundle install error in Rails

I am using Ruby 2.4.2. When I run bundle install, it shows the following error:
Your Ruby version is 2.4.1, but your Gemfile specified 2.3.3
It showing this error because in your Gemfile you have specified Ruby version '2.3.3'.
You have two options: one is to remove the Ruby version declaration from your Gemfile, the second to specify the version that is installed on the system in Gemfile.
ruby '2.4.1'
It should be like that in your gemfile.
If you want to use Ruby '2.4.2' then install it in your system and specify the same in Gemfile. You can use RVM or rbenv to manage multiple versions of Ruby.

Rails Seeing Incorrect Ruby Version

I've built a Rails 5 app and it's working great but I'd like to change the Ruby version I'm running it on. I'm using RVM 1.27.0 on Ubuntu 16.04. I copied the app folder to a different path and changed the versions on .ruby_version and my Gemfile:
Gemfile:
source 'https://rubygems.org'
ruby "2.2.2"
.ruby_version:
ruby-2.2.2
Once I updated these I moved out and back into the folder and ran a ruby -v:
ruby 2.2.2p95 (2015-04-13 revision 50295) [x86_64-linux]
I then ran a bundle install and everything installed without error.
However, when I ran rake -T I get this:
Your Ruby version is 2.3.1, but your Gemfile specified 2.2.2.
My $PATH looks good:
/home/ken/.rvm/gems/ruby-2.2.2/bin:/home/ken/.rvm/gems/ruby-2.2.2#global/bin:/home/ken/.rvm/rubies/ruby-2.2.2/bin:/home/ken/.rvm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
What am I missing? Where is Rails pulling the Ruby version from? How can I fix this?
You're using a system bundler which is why you're seeing a different version of ruby. All you need to do is install bundler under your current ruby version:
gem install bundler
bundle install
Once you do a bundle install you'll get the gem's built for the correct ruby version.
The file name should be .ruby-version, not .ruby_version.
And you also should have file .ruby-gemset with content
gemset
check this link, Create .ruby-version and .ruby-gemset with rvm
You can also try spring stop and gem install bundler

Bundle is switchng my rails version but I have no gem file. How to stop this?

I create a gemset with
$ rvm gemset create r3
$ rvm gemset use r3
$ gem install rails -v3.2.13
At this point
$ rails -v
now shows
$ Rails 3.2.13
but every time I do bundle with a project I've forked, I find that
rails -v
shows Rails 4.0.1 - which then gives issue with the project in question when running tests
(4.0.1 conflicts with 3.2.13).
My question is - if my Gemfile only has:
$ cat Gemfile
source 'https://rubygems.org'
gemspec
how is this happening? How can I make my command line ruby version stay at 3.2.13 and not switch to 4.0.1 Once it switches to 4.0.1 I seem to be stuck with that for that gemset and to create a 3.2.13 gemset I have to start over again.
Bundle works by finding the most up-to-date version of the gems that are compatible with the restrictions from the Gemfile. In this case, those restrictions are coming from the gemspec file, which presumably allows versions of Rails greater than 3.2.13. So it's picking the most up-to-date version of Rails allowed - which is 4.0.1. Your RVM configuration is not relevant here.
To lock your particular fork to Rails 3.2.13, just add the following:
gem 'rails', '3.2.13'
to the Gemfile in your fork. This will lock the local version to 3.2.13 when you run bundle.
if you wish to explicitly use different version of rails then the one that would be calculated from Gemfile then you need to use:
NOEXEC_DISABLE=1 rails ...
you can make it permanent for single shell session with:
export NOEXEC_DISABLE=1
rails ...
and to disable loading gems in versions calculated via Gemfile put it in you shell initialization file (like ~/.bash_profile or ~/.zlogin):
export NOEXEC_DISABLE=1
this happens because RVM installs gem rubygems-bundler which automatically analyzes your Gemfile when you run gem binaries and if a version specified via this file is available then it is loaded (even if it is specified only as dependency of your gems).

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