I'm familiar with Rails 3, but not rails 2. I've just inherited a rails 2 project with no Gemfile, but a bunch of config.gem lines in config/environment.rb
I'm just wondering how I to install these. bundle install returns Could not locate Gemfile.
You can install gems in rails 2.x by using the rake command
rake gems:install
You can use bundle install if you use this guide:
http://gembundler.com/rails23.html
To have "backwards" compatibility for bundler.
Related
Um quite new to rails and um getting an error when run the command
rails s
it says
Could not find rake-0.9.2.2 in any of the sources
Run bundle install to install missing gems.
when I run bundle install nothing happened
my gem list has rake 0.9.2.2
what can go wrong?
my ruby version is 1.9.3
Thank you in advance
Remove all the versions of Rake ==> gem uninstall rake
Remove your gemfile.lock => rm Gemfile.lock
Remove gem 'rake' on your gemfile
Run bundle install
Install Rake manually : gem install rake --version=10.0.4
When you use command gem list, you will get a list of gem installed on your machine.
For example : rake (10.0.4, 10.0.3, 0.9.2.2)
Just see the console which gem is compatible with your application. It is already mentioned in the error log message.
Use
gem uninstall rake
Keep the suitable one and remove the version who is creating trouble. And then run rails s or bundle exec rails s
Try using rvm and go back to ruby 1.8.7 instead of 1.9.2. This fixed it for me. Don't forget to install rails again (sudo gem install rails while already on 1.8.7) if you have only installed rails for 1.9.3.]
I've set up an RVM environment and installed Bundler and Rake.
In my Project I've got a Gemfile, when I run bundle install the gems get installed in the project folder that I've specified. But when I run gem list I don't see the gems installed by Bundler.
Why is that?
Thanks for your help
Edit:
And also I've definied the rails gem and it's version in the project Gemfile so I never ran gem install rails
Edit 2:
I've ran gem install rails. When I run rails -v outside my project I get 3.2.12, inside my project folder I get 3.2.11 which is the version defined in my Gemfile.
But why? Why did I have to install Rails globally?
In your .rvmrc write following code:
rvm use <ruby_version>#<project_name> --create
In my case ruby_version is ruby-1.9.3-p194
Once you navigate to your project path, run bundle install to install all the gems specific to your project.
Recently I started my adventure with Ruby on Rails using version 2.3.14. When generating a new project, why isn't Rails creating a Gemfile?
Rails 2.3 Doesn't Have Bundler Support
Why? Because it just doesn't. Rails 3 has native Bundler support, but you can add Bundler support to Rails 2.3 by following the step-by-step directions on the Bundler web site.
Roll Your Own
If you just want a Gemfile, rather than Bundler integration with Rails, you can create one easily enough.
gem install bundler
bundle init
Vendor Your Gems
In older versions of Rails, the way to handle gems was to vendor your gems. The old 2.3 version of A Guide to The Rails Command Line may help you, especially the section that covers rake gems:install.
Rails 2.3 doesn't have built-in bundler support because it came out before Bundler.
The Bundler website provides instructions for adding Bundler to Rails 2.3.
In short:
Add a config/preinitializer.rb to set up the bundled environment before Rails is loaded
Update your config/boot.rb to require the bundled gems
Move any config.gem declarations to the Gemfile
Proceed as usual
I am following this backbone rails turotial.
The tutorial says they are using Ruby 1.9.2 and rails 3.0.3.
I am using Ruby 1.9.3, and I created an rvm gemset for this tutorial and installed rails 3.0.3 into the gemset.
I ran bundle install which installed mysql2 version 0.3.11
When I ran rake db:create I got this error:
WARNING: This version of mysql2 (0.3.11) doesn't ship with the ActiveRecord adapter bundled anymore as it's now part of Rails 3.1
WARNING: Please use the 0.2.x releases if you plan on using it in Rails <= 3.0.x
So I ran:
gem uninstall mysql2
gem install mysql --version 0.2
rake db:create
Then I got this error:
Could not find mysql2-0.3.11 in any of the sources
Try running bundle install.
If I run bundle install it takes me back to the first problem.
Not sure what the I should try next.
place in Gemfile
gem 'mysql2','0.2.7'
then run
bundle install
I have two versions of rails (2.1.0 and 2.2.2) installed in my computer.
When I create a new application, is it possible to specify that I want to use the older (2.1.0) version?
I found here an undocumented option to create a new application using an older version of Rails.
rails _2.1.0_ new myapp
Here is the command which I use normally:
rails _version_ new application_name
for example rails _7.0.4_ new my_app
Here is the list of all available rails versions so far:
http://rubygems.org/gems/rails/versions
I was having some trouble using rails _version_ new application_name (the resulting project was still generated for the newest version of Rails installed.)
After a bit of digging I found an article by Michael Trojanek with an alternative approach. This works by creating a folder with a Gemfile specifying the desired version of Rails and then using bundle exec rails... so that Bundler takes care of running the appropriate version of rails. e.g. to make a new Rails 4.2.9 projects the steps are:
mkdir myapp
cd myapp
echo "source 'https://rubygems.org'" > Gemfile
echo "gem 'rails', '4.2.9'" >> Gemfile
bundle install
bundle exec rails new . --force --skip-bundle
bundle update
As rightly pointed out by #mikej for Rails 5.0.0 or above, you should be following these steps:
Create a directory for your application along with a Gemfile to specify your desired Rails version and let bundler install the dependent gems:
$ mkdir myapp
$ cd myapp
$ echo "source 'https://rubygems.org'" > Gemfile
$ echo "gem 'rails', '5.0.0.1'" >> Gemfile
$ bundle install
Check that the correct version of rails has been installed: $ bundle exec rails -v
Now create your application, let Rails create a new Gemfile (or rather overwrite the existing one by using the --force flag) and instead of installing the bundle (--skip-bundle) update it manually:
$ bundle exec rails new . --force --skip-bundle
If you check the entry for rails in Gemfile, it should be like this:
gem 'rails', '~> 5.0.0', '>= 5.0.0.1'
You should update it to the exact version needed for the application:
gem 'rails', '5.0.0.1'
Now, the final step:
$ bundle update
There are two ways to achieve this:
one as suggested in accepted answer:
gem install rails -v 2.1.0 #only when the gem has not been installed in the desired ruby version you are using, so that you don't get error on next step
rails _2.1.0_ new my_app
and alternative method is to create gemfile with desired rails version before initializing rails project
mkdir my_app
cd my_app
echo "source 'https://rubygems.org'" > Gemfile
echo "gem 'rails', '2.1.0'" >> Gemfile
bundle install
bundle exec rails new . --force --skip-bundle
I have written about this in details in my article
You can generate the skeleton with either version and require the one you want in config/environment.rb:
# Specifies gem version of Rails to use when vendor/rails is not present
RAILS_GEM_VERSION = '2.1.2' unless defined? RAILS_GEM_VERSION
or use the "rails" command form the version you want anyway.
You should also take a look at "freezing" your Rails gems into the app. This helps a lot with deployment, specially in shared hosting environments.
Just change the RAILS_GEM_VERSION variable in config/environment.rb and issue the freeze rake task:
rake rails:freeze:gems
Please watch out which version of ruby you are using with Rails.
The command for making a new project for a specific version of Rail may not work for you. I had some issues about it. And the problem was the ruby version I have default which is 3.0.0. This version did not work with Rails 5. Then I installed ruby 2.7.5 and switched to it as default. Only then I was able to make projects both for Rails 5 and 7.
If you want the same environment with ruby 2.7.5
rvm install ruby-2.7.5
switch to this version as default
rvm --default use 2.7.5
install bundler and webpacker
gem install bundler
gem install webpacker
install lastest rails (which is 7)
gem install rails
test it
rails new test_app_6
cd test_app_6
rails s
check for localhost 3000
http://localhost:3000
then stop the server (control + c) and install Rails 5
gem install rails -v 5.2.6
test it
rails _5.2.6_ new test_app_5
cd test_app_5
rails s
check for localhost 3000
http://localhost:3000
You're set!