I used railstutorial.org to install the latest version of ruby and the latest version of rails on my machine.
at the end of the installation I checked
ruby -v ==> 1.9.2 (great)
rails -v ==> 3.0.1 (great)
this morning I opened up terminal
ruby -v
ruby 1.8.6 (2009-06-08 patchlevel 369) [universal-darwin9.0]
rails -v
Rails 1.2.6
what happened?
My advice for people who are installing ruby is to use RVM. It makes managing your ruby versions and gem versions really simple and you can install multiple ruby versions side by side.
You might want to read this post:
http://rubylearning.com/blog/2010/12/20/how-do-i-keep-multiple-ruby-projects-separate/
You can use Cinderalla to the whole ruby/rvm/mysql/redis/git/... stack set up properly. Cinderella installs everything in ~/Developer and fixes up your PATH as well. I had some issues with a corrupt git mirror last time I used Cinderalla though so YMMV.
With many unix variants, you are likely to have multiple versions of Ruby--particularly if you installed Ruby 1.9 and the system already had 1.8 installed. Essentially, the 1.8 version of Ruby has a higher precedence in your PATH than the 1.9 version. The Ruby Gems command keeps the libraries separate between 1.8 and 1.9 so that the platform will be reasonably stable.
To correct the problem, you have to find where ruby 1.9 is installed. Once you do that, you'll need to override your PATH variable. Assuming 1.9 is installed in the path: /opt/ruby-1.9.2, you will need to set your PATH like this:
PATH=/opt/ruby-1.9.2/bin:$PATH
export PATH
To make the path respect what you want every time, add that to your ~/.profile file (create it if necessary). Once the path has been set, it sould be able to find the correct version of Rails again.
I cannot say for certain because I cannot debug you OSX machine from here, however, I had a very similar occurrence. The problem was caused because I had installed ruby and then rails on my machine using sudo or from the root account. Then when I discovered rvm I installed everything in my user account. When I logged off and back in I appeared to lose everything. I was pulling out my hair. I was pissed that I was going to have to reinstall everything again... when I found the magic.
from the command line execute the command:
rvm list
you'll see that your new version of ruby is there. you'll also notice the tokens that indicate that it is just a normal version. It is not current or default. (see it yet)
Now if you run the command:
rvm use 1.9.2 --default
then every time you login/off and restart your machine your user account will default to that version of ruby and all of the gems that you installed against that version.
Related
I am setting up a simple ruby on rails app locally. It seems I have two different versions of ruby on mac and I would like to only use one. When I ran bundle install, it says Your Ruby version is 2.7.1, but your Gemfile specified 2.6.3. Then, I changed the line ruby '2.6.3' in my gemfile to ruby '2.7.1'. With this it ran bundle install properly. However, when I run rails server it says Your Ruby version is 2.6.3, but your Gemfile specified 2.7.1.
Why is it saying two different values for my Ruby version?
How do I get it to only use one version of Ruby?
If its relevant, I am on a mac and installed ruby using homebrew. If I run ruby -v in the terminal it says ruby 2.7.1p83 (2020-03-31 revision a0c7c23c9c) [x86_64-darwin19]. I'm not sure why it says I have ruby 2.6.3.
There are to different versions because Mac OSX already includes one by default for system scripts (2.6). Homebrew install another one that never overrides o reemplace the System Wide version.
You are looking for a "Ruby Version Manager", are tools that allow you to install and use different versions of Ruby, even per project.
The popular ones are RVM and rbenv. Personally, i choose rbenv and I think that is the most widely used of both. Example of use:
# Install ruby 2.7
rbenv install 2.7.1
# Make ruby 2.7 the default version
$ rbenv global 2.7.1
# Or make 2.7 the default versión only on a specific project
$ cd myproject
$ rbenv local 2.7.1
# this create a ".ruby-version" file
This webpage always have the most recent and easy to use tutorial for setup a Ruby environment, depending on the OS and version.
https://gorails.com/setup/osx/10.15-catalina#overview
You have two different versions of Ruby installed, because MacOS natively comes with a standard installation of Ruby.
You also have rails pointing to the system version of Ruby. That version is usually under /usr/bin/ruby. The Homebrew installed version of Ruby (which is what you want) is located under /usr/local/bin/ruby unless you specified a completely different root path to install your brew packages.
Running brew config will give you a short list of data about your Homebrew configuration. Among them is an environment variable called HOMEBREW_PREFIX, which should look something like this:
$ brew config
....
HOMEBREW_PREFIX: /usr/local
....
I recommend placing /usr/local/bin first on your PATH environment variable so that you can easily use your brew packages via the CLI:
export PATH="/usr/local/bin:$PATH"
You may also want to look into setting the following environment variables for whichever shell you are using (examples given):
RUBY_ENGINE=ruby
RUBY_VERSION=2.7.1
GEM_ROOT=/usr/local/etc/ruby-2.7.1/lib/ruby/gems/2.7.1 (alias for GEM_HOME)
gem env gives a lot of great information on how Gems is configured.
I I had this exact problem and managed to fix it by running this command:
CFLAGS="-Wno-error=implicit-function-declaration" rbenv install 2.6.7
Note - I needed that version (2.6.7) please change it to the one you need
I found this on this blog post here - https://dev.to/rbazinet/fix-installation-of-ruby-using-rbenv-on-macos-big-sur-3432
Forgive me if there's a duplicate, but I'm honestly not sure what to search for. I'm working on a project with Ruby on Rails, and I get this message when doing anything related (ie: rake, rails, rspec, etc.):
Your Ruby version is 2.1.5, but your Gemfile specified 2.2.3
Now, I've installed RVM and I can fix this issue by issuing the command
bash --login
edit for clarity
running the above command does use Ruby 2.2.3 to execute the commands.
/edit
Then those given commands work. What I would like to do is to remove version 2.1.5 entirely -- leaving only 2.2.3. I've gone about this so many different ways, but Ruby is pretty foreign territory to me so I'm not sure what to do about this. I'm sure I have at least three installations of Ruby on my machine - possibly two duplicates of the two versions I know I have - and I would like only one version and to avoid needing to enter the bash --login command in order to run my project.
I'm running Ubuntu 15.10 and have at least some knowledge of how this works. If somebody could walk me through removing everything related to Ruby & Ruby on Rails, then installing only Ruby 2.2.3 and Rails 4.2.4, I would greatly appreciate that. Let me know if this isn't the proper exchange for this question. It didn't quite seem to fit into Ubuntu or Sysadmin.
What you need to do is not try to remove ruby 2.1.5.
You have RVM, so, use that to get the new version you want.
After this, you now have two options:
1) make the newly installed version the global default version on your machine,
or
2) create a gemset for your project, and specify the needed ruby version for the project.
Either of these will fix your problem.
You have to modify the Gemfile.
http://bundler.io/v1.3/gemfile_ruby.html
I've installed Ruby on a Windows computer
After Setting Up Ruby Installer What Command line tools do you use?
http://railsinstaller.org/en
I've tried the command
rvm use 1.9.3
using the command prompt ruby and rails
I get the error message
rvm is not a recognised command
From RVM’s FAQ:
Does RVM work on windows? Will it in the future?
NO. If you would like to manage multiple versions of ruby on windows please use pik which is an excellent tool by Gordon Thiesfeld. You can find it on GitHub. There are plans to include windows support in RVM 2.0.
https://rvm.io/support/faq#does-rvm-work-on-windows-will-it-in-the-future
Doing Rails development on Windows is a little bit more of a challenge and you may run into some annoyances, but it's definitely possible.
Uru worked well for me as a nice alternative to RVM, which doesn't run on Windows. However, if you just want to have one version of Ruby installed on your computer and work with it, you don't even need to bother with Uru.
Windows is not the best environment to develop with Ruby ...
RVM doesn't work and PIK hasn't updated for more than 2 years..
Github of Pik
This installer doesn't install RVM. It installs Ruby interpreter and Rails.
Since you've installed it, I assume you have your Ruby and libraries for it (called gems) rails and bundler. Execute gem list in your shell to verify (it should output a looong list).
Then you should create a new Rails project:
rails new project_name
...and then go into the folder that got created
cd project_name
bundle what you have:
bundle install
...and launch the server to see if it works:
rails server
or
rails s
You will likely run into issues with tzinfo gem if you're on 64-bit Windows, but that can be easily fixed by searching around StackOverflow, it's been discussed.
Gool luck to you. Developing Rails applications in Windows proved to be hard to me. Consider launching a virtual machine (using, for example, VirtualBox) with Linux aboard. That's what you could do in Linux:
install RVM as the site suggests:
curl -sSL https://get.rvm.io | bash -s stable
install the latest MRI available - feel free to replace ruby with the version you need, like rvm install 2.0.0
rvm install ruby
select and set as default the Ruby you need, you've tried a similar line apparently with Ruby 1.9.3
rvm --default use ruby
another long process
gem install rails
rails new project_name
(same as described above)
cd project_name
bundle install
rails s
That should work, and that's what you've probably seen. Again, I highly recommend using Linux in VirtualBox (or anything similar) for Rails development. A native Linux installation could only be a better environment, but most people are not ready for this just yet.
I am looking for a piece of software that will allow me to use Ruby on Rails 2.3.8 on top of MACOSX - basically, I teach at a college where students are not able to get terminal acccess to the rails built into OSX so I am looking for a piece of software like "Locomotive" that is an app that allows students to use rails without administrator access to the computer itself.
Any one have any ideas?
We will be using Rails 2.3.8
thanks.
I encourage you to teach 3.0, but each to their own. If your materials only cover 2.3.8 then it's missing out on a lot of goodies associated with 3.0 (such as Bundler). Anyway:
My primary fear with this is that you're going to have an un-upgradable version of Rubygems if you don't have system privileges. Some gems require a Rubygems version >= 1.3.5 or even better, 1.3.6. Latest is 1.3.7. Thankfully, there's a way around it.
You can do this by installing the rvm gem:
gem install rvm --install-dir ~/.gems
RVM is "Ruby Version Manager" and does what it says on the tin: manages different versions of Ruby on your system. It'd be helpful in your case because it works without modifying the system Ruby.
This will install the gem to the user's home directory rather than the default system path. Then you'll need to run the rvm-install command which, as of this writing is:
~/.gems/rvm-1.0.14/bin/rvm-install
Your version of RVM may be different. To install a new version of Ruby which people can (ab)use run:
rvm install ruby-1.9.2-p0
1.9.2 is the latest stable version of Ruby and I highly encourage you use it rather than the older 1.8.7.
This should come with the latest Rubygems and, for bonus points, won't muddle about with the existing ruby installation on the machine (which is probably impossible if you don't have admin rights).
From this point, you'll be able to use
rvm use ruby-1.9.2-p0
to "switch" to that specific ruby. From there, you'll be able to do run gem install rails -v 2.3.8 which will install Rails somewhere in ~/.rvm. The location is not important. What is important however is that now you'll have a rails command that you can use and then you can go from there.
Good luck!
I'm used to the One-Click install local environments of MAMP. Is there a Ruby equivalent... a download that you run and instantly get the most current versions of Ruby, Rails, SQLite running locally?
I'm using a Mac, running Leopard, and am aware that all of the aforementioned technologies ship with Leopard (except maybe SQLite). The books that I have reference newer versions and the last thing I need is to try to retrofit a tutorial to work with my version.
And one more less important question: What are "Gems" and is that something that I need to make sure is fully updated too?
Installation is pretty confusing when you first start with Rails! Even though a lot of what you need is already installed if you are using Mac, personally I found it really hard to find come concise information on how to best go about setting things up.
Since I didn't want anyone else to go through the headaches that I had when configuring their Mac development environment, I've written a 7 step guide to installing Ruby on Rails, MySQL, Apache with PHP, and phpMyAdmin on OSX Leopard. In short, everything you should need to get developing locally on your Mac!
Here's the link:
http://waavoo.com/2009/7-step-guide-installing-ruby-on-rails-mysql-apache-php-phpmyadmin-intel-mac-os-x-leopard/
Hope that helps!
Take a look at FiveRuns Install. It's a free Ruby on Rails stack that you can download.
RubyGems is the Ruby standard for publishing and managing third party libraries. Check out the User Guide.
Have fun!
I have no idea what mac os are you in but Leopard (10.5.x) already have ruby installed, all you need is to updated the gems using
gem update rails
in your command line.
if you're on Tiger (10.4.x) the installation is broken, and please follow this link.
You should also have a look at Phusion Passenger - this, along with the prefpane, allows you to have apache VirtualHosts set up the easy way.
Current versions of Rails are designed to work (for development) without needing an AMP -style stack, by using SQLite and a small Ruby Web server, so if you will only be doing Rails development you don't need to set up a stack - you can just type "rails" and it will work.
BUT the versions of RubyGems and Rails shipped with Leopard are now outdated, though, so you'll need to upgrade these before you go too far. There's an article that I wrote on setting up a Mac for development here, but the minimum commands go like this:
sudo gem install rubygems-update
sudo update_rubygems
sudo update_rubygems (yep, twice)
sudo gem update --system
These get RubyGems up to the current release, so that you can upgrade Rails safely. To do that, type:
gem update rails
The last command doesn't have sudo, because if you omit it, current versions of RubyGems will install a clean copy of the gems into your home directory, leaving the system versions untouched.
Finally, amend the .profile file in your home directory, so that the line with PATH in it says:
export PATH=$HOME/.gem/ruby/1.8/bin:$PATH
Close up any terminal windows for this to take effect. The utilities provided by the gem packages in your home directory will now have precedence over the system versions.
This means that you can type "rails" and the latest version will run, but you haven't messed with any of the software provided by Apple (apart from the system copy of RubyGems).
To upgrade your private copy of Rails whenever a new version comes along in future it's just this again:
gem update rails
just refer this....
http://wiki.rubyonrails.org/getting-started/installation/windows#installing_ruby_on_rails_on_windows
BitNami RubyStack is exactly what you are looking for http://bitnami.org/stack/rubystack