I'm new to both Ruby and Sinatra/Padrino so I apologize if I'm missing something really simple.
I have Sinatra working fine, as I can build a very simple "hello" app and see it work.
I wanted to move on and generate a new Padrino project, but when I do this:
$ padrino g project foobar
I get this:
/Users/dave/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.0/lib/active_support/ordered_hash.rb:3:in `<top (required)>': undefined method `add_builtin_type' for Psych:Module (NoMethodError)
from /Users/dave/.rvm/rubies/ruby-2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:121:in `require'
from /Users/dave/.rvm/rubies/ruby-2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:121:in `require'
from /Users/dave/.rvm/gems/ruby-2.1.5/gems/padrino-gen-0.12.4/lib/padrino-gen.rb:3:in `<top (required)>'
from /Users/dave/.rvm/rubies/ruby-2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Users/dave/.rvm/rubies/ruby-2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Users/dave/.rvm/gems/ruby-2.1.5/gems/padrino-gen-0.12.4/bin/padrino-gen:12:in `<main>'
I have tried installing the Psych gem but this didn't change anything. I have no idea what to try next, or how to really interpret the error message. Any nudges in the right direction you can give me?
Bug reports show this may be an RVM issue.
I suggest changing from RVM to "ruby-install" and "chruby" because IMHO these are simpler, easier, and better at installing dependencies including psych and its libraries.
As joelparkerhenderson noted, the error message shows problems with gem files in the .rvm directory, suggesting some issue or conflict with rvm. Switching to system ruby solved the problem for me. I don't really need to use a specific version of ruby on this project, so that's a fine workaround for me.
I had this problem while using Ruby 2.1.5. After reading comments on here I realized it's not a RVM problem, but a ruby problem. I switched to 2.0.0-p576 and everything works. Psych must not be compatible with the new ruby versions.
However I don't understand how a different ruby version would cause this method to go missing. If anyone could explain that I would be grateful!
I ran into this using rbenv and padrino 0.13.0. Tried many versions of Ruby, including the system Ruby on OS X El Capitan, but found that that made no difference, so I'm now running the latest stable one (2.2.4).
Eventually I tried each version of the psych gem and found I could only get padrino g to work with an older version of the gem. Psych version 2.0.8 worked, while every newer version (up to the current 2.0.16) failed.
So: gem install psych -v=2.0.8 && gem uninstall psych -v '>= 2.0.9'
With me, after a lot of googling and reading various thread on S.O., it was only my rvm that was the problem. I was getting the rvm 'WARNING!' that rvm wasn't first in $PATH. You can check this with echo $PATH. Check out your ~/.bashrc see if there is anything like heroku toolbelt or linuxbrew, or whatever, loading themselves into your PATH at the FRONT i.e. PRE-PENDING your path, rather than APPENDING. This is indicated by something like export PATH="/usr/local/heroku/bin:$PATH". That sets heroku at the beginning of your PATH. Simply change it to export PATH="$PATH:/usr/local/heroku/bin".
I was trying to start a padrino project with activesupport, and this was causing problems. Changing to an earlier version of Ruby, as suggested in another thread, didn't cut it, because activesupport requires 2.2.0 or up.
Fixing my PATH, ensuring that rvm was initialized at the very beginning of the PATH, fixed my Padrino problem, and was able to initialize a project with the following command:
padrino g project sample_blog -t shoulda -e haml -c sass -s jquery -d activerecord -b
I know that's all a little off-tangent, but I think it's bound to help one or two people out there!
PS I'm using ruby 2.2.2p95 in this project folder.
After installing RVM the other day I can no longer use compass watch as I could.
I've tried updating the system, installing compass again, as well as sass, all to no avail.
Here's the error I get in Terminal:
/Users/john/.rvm/gems/ruby-2.0.0-p247#global/gems/bundler-1.3.5/lib/bundler/definition.rb:16:in `build': /Gemfile not found (Bundler::GemfileNotFound)
from /Users/john/.rvm/gems/ruby-2.0.0-p247#global/gems/bundler-1.3.5/lib/bundler.rb:148:in `definition'
from /Users/john/.rvm/gems/ruby-2.0.0-p247#global/gems/bundler-1.3.5/lib/bundler.rb:116:in `setup'
from /Users/john/.rvm/gems/ruby-2.0.0-p247#global/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
from /Users/john/.rvm/gems/ruby-2.0.0-p247/gems/compass-0.12.2/bin/compass:26:in `<top (required)>'
from /Users/john/.rvm/gems/ruby-2.0.0-p247/bin/compass:23:in `load'
from /Users/john/.rvm/gems/ruby-2.0.0-p247/bin/compass:23:in `<main>'
from /Users/john/.rvm/gems/ruby-2.0.0-p247/bin/ruby_executable_hooks:15:in `eval'
from /Users/john/.rvm/gems/ruby-2.0.0-p247/bin/ruby_executable_hooks:15:in `<main>'
I've attempted to use bundle update sass-rails per this question, but get the error Could not locate Gemfile
I've also tried to follow the advise here to no avail.
At this point I'm a bit lost. I'm brand new to the Ruby world as well as RVM, and am not the most proficient Terminal user to begin with.
Thanks for any assistance or insight-
/Gemfile not found was a bug in older version of rubygems-bundler gem, run:
rvm #global do gem update rubygems-bundler
and it should work fine
I don't have the answer as to how to fix the problem itself, but I did go through with simply removing it for the time being.
I used rvm implode to remove rvm from my machine per this post.
Everything worked fine after that. Unfortunately that'll delay my experimenting with the Ruby world for a little while longer as I don't have time to figure out how to have RVM without the complications it seemingly brought.
Best,
When I am trying to install a gem or run anything with gem command, I see this warning,
Error loading RubyGems plugin "/Users/ender/.rvm/gems/ruby-1.9.3-p194#global/gems/rubygems-bundler-0.9.0/lib/rubygems_plugin.rb": undefined method `first' for #<String:0x007ffedc0964f0> (NoMethodError)
I searched it but I could not find anything out.
What is the problem and how can I fix it?
Note: I cannot install any gems.
Thanks.
Try removing the /Users/ender/.rvm/gems/ruby-1.9.3-p194#global/gems/rubygems-bundler-0.9.0 directory. There seems to be a problem with this gem.
I hope you can help me.
I am working on a small Sinatra Rails application. I have Ruby installed on Mac OSX using RVM (currently using ruby 1.9.2)
I changed my app to include some new gems and to use bundler/setup but I receive the following error when I start the server:
/Users/Matt/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require': no such file to load -- bundler/setup (LoadError)
from /Users/Matt/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from application.rb:2:in `<main>'
I am fairly sure I have something going wrong here, I'm just not sure what or how to fix it.
Running the which commands receives the following output:
which ruby: /Users/Matt/.rvm/rubies/ruby-1.9.2-p290/bin/ruby
which bundle: /Users/Matt/.rvm/gems/ruby-1.9.2-p290/bin/bundle
which gem: /Users/Matt/.rvm/rubies/ruby-1.9.2-p290/bin/gem
Please can someone help me as this is starting to drive me a little crazy.
Many thanks in advance for your help.
from the #stephenmurdoch's comment above:
try running gem install bundler followed by bundle install from inside your application.
I am writing a script with Ruby/MongoDB that stores Tweets. After I gem-installed mongoid, this first-steps code throws an error:
require 'rubygems'
require 'mongo'
require 'mongoid'
Mongoid.database = Mongo::Connection.new('localhost').db('db')
# snippet from http://rujmah.posterous.com/using-mongoid-without-rails
NB. This is no Rails app, but a Terminal script.
The error I get is:
./mongoid.rb:10: uninitialized constant Mongoid (NameError)
from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:36:in `require'
from mongoid.rb:3
It works in irb and I'm running ruby 1.8.7 (2009-06-12 patchlevel 174) [universal-darwin10.0].
What am I doing wrong?
Edit August 2012
Somehow I got it to work. Alas, nearly a year on, I really can’t remember how. I will try to do better next time.
I hit the same issue while trying to get Bullet gem to work. The solution for me was to simply move gem 'mongoid', github: 'mongoid/mongoid' as the first line of the Gemfile. I find it really odd but that was how I got rid of that error.
I am using Ruby 2.1.0 and Rails 4.0.0