im installing rails on ubuntu 12.04. installed manualy, using this method:
How do I install ruby 2.0.0 correctly on Ubuntu 12.04?
then:
gem update --system
gem install rails
now if i run command "rails" the output is as following:
/usr/local/lib/ruby/site_ruby/2.0.0/rubygems/dependency.rb:298:in `to_specs': Could not find 'thread_safe' (~> 0.1) - did find: [thread_safe-0.1.2-java] (Gem::LoadError)
from /usr/local/lib/ruby/site_ruby/2.0.0/rubygems/specification.rb:1265:in `block in activate_dependencies'
from /usr/local/lib/ruby/site_ruby/2.0.0/rubygems/specification.rb:1254:in `each'
from /usr/local/lib/ruby/site_ruby/2.0.0/rubygems/specification.rb:1254:in `activate_dependencies'
from /usr/local/lib/ruby/site_ruby/2.0.0/rubygems/specification.rb:1236:in `activate'
from /usr/local/lib/ruby/site_ruby/2.0.0/rubygems/specification.rb:1268:in `block in activate_dependencies'
from /usr/local/lib/ruby/site_ruby/2.0.0/rubygems/specification.rb:1254:in `each'
from /usr/local/lib/ruby/site_ruby/2.0.0/rubygems/specification.rb:1254:in `activate_dependencies'
from /usr/local/lib/ruby/site_ruby/2.0.0/rubygems/specification.rb:1236:in `activate'
from /usr/local/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_gem.rb:48:in `gem'
from /usr/local/bin/rails:22:in `<main>'
edit:
yes i tryed:
gem install --version 0.1.2 thread_safe
gem uninstall thread_safe
gem install thread_safe
after reinstalling thread_safe rails gave me the same error
Seems you are using 2.1.0 version of rubygems. It's not bug of tread_safe or atomic gems, but it's bug of rubygems 2.1.0. Try to install older version (like 2.0.8). How to do this:
gem uninstall rubygems-update
gem install rubygems-update --version 2.0.8
update_rubygems
The error message says thatyou don't have thread_safe version ~>0.1, and that it found thread_safe version 0.1.2-java,but i guess this version was not compatible/satisfactory.
probably somehow the non-java version was not getting installed coz of the presence of the java version. install the gem separately.
gem install --version 0.1.2 thread_safe
so i searched for atomic gems, found atomic (1.1.14 ruby java). mine was atomic (1.1.13 java). It might be because i had no JDK 8 installed, but after installing atomic (1.1.14 ruby java) command rails gives me nice list of available parameters.
rails new test_app = success!!!
Related
When I type
rails _4.2.0.rc2_ new hello_app
I get this error
/Library/Ruby/Site/2.0.0/rubygems/dependency.rb:315:in `to_specs': Could not find 'railties' (= 4.2.0.rc2) - did find: [railties-4.1.8] (Gem::LoadError)
Checked in 'GEM_PATH=/Users/a11/.gem/ruby/2.0.0:/Library/Ruby/Gems/2.0.0:/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/gems/2.0.0', execute `gem env` for more information
from /Library/Ruby/Site/2.0.0/rubygems/dependency.rb:324:in `to_spec'
from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_gem.rb:64:in `gem'
from /usr/bin/rails:22:in `<main>'
I tried installing railsties 4.2.0.rc2 using
gem install railties --pre
If you want try to use new rails version, you need execute
gem install rails --pre
instead of
gem install railties --pre
Railties its core of Rails framework but not in all. See official documentation for more information.
I re-installed rails completely
gem uninstall railties -v 4.2.0.rc2
sudo gem install rails -v 4.2.0.rc2
and that solved it.
I'm going through the rails tutorial atm. (I'm a beginner so bear with me.)
As you can see below, when I try and install the rubygems using 'bundle install', I get the error message saying that I need to make sure 'gem install json -v '1.8.1' succeeds before I try again.
But when I try and sudo gem install json -v '1.8.1', I get the
.
If I'm asking a stupid question, or if I've left out any necessary info, just let me know. I'm new to this -- CodeAcademy & RailsForZombies are the extent of my knowledge.
ben#ben-X551CA ~/first_rails_project/bens_first_app $ bundle install
Fetching gem metadata from https://rubygems.org/..........
Resolving dependencies...
Using rake 10.3.2
Using i18n 0.6.11
Using minitest 4.7.5
Using multi_json 1.10.1
Using thread_safe 0.3.4
Using tzinfo 0.3.41
Using activesupport 4.0.8
Using builder 3.1.4
Using erubis 2.7.0
Using rack 1.5.2
Using rack-test 0.6.2
Using actionpack 4.0.8
Using mime-types 1.25.1
Using polyglot 0.3.5
Using treetop 1.4.15
Using mail 2.5.4
Using actionmailer 4.0.8
Using activemodel 4.0.8
Using activerecord-deprecated_finders 1.0.3
Using arel 4.0.2
Using activerecord 4.0.8
Using bundler 1.7.2
Using coffee-script-source 1.8.0
Using execjs 2.2.1
Using coffee-script 2.3.0
Using thor 0.19.1
Using railties 4.0.8
Using coffee-rails 4.0.1
Using hike 1.2.3
Using jbuilder 1.0.2
Using jquery-rails 3.0.4
Your user account isn't allowed to install to the system Rubygems.
You can cancel this installation and run:
bundle install --path vendor/bundle
to install the gems into ./vendor/bundle/, or you can enter your password
and install the bundled gems to Rubygems using sudo.
Password:
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/usr/bin/ruby1.9.1 extconf.rb
/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require': cannot load such file -- mkmf (LoadError)
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:inrequire'
from extconf.rb:1:in `'
Gem files will remain installed in /tmp/bundler20140908-2757-18q0kfn/json-1.8.1/gems/json-1.8.1 for inspection.
Results logged to /tmp/bundler20140908-2757-18q0kfn/json-1.8.1/gems/json-1.8.1/ext/json/ext/generator/gem_make.out
An error occurred while installing json (1.8.1), and Bundler cannot continue.
Make sure that gem install json -v '1.8.1' succeeds before bundling.
ben#ben-X551CA ~/first_rails_project/bens_first_app $ gem install json -v '1.8.1'
ERROR: While executing gem ... (Gem::FilePermissionError)
You don't have write permissions into the /var/lib/gems/1.9.1 directory.
ben#ben-X551CA ~/first_rails_project/bens_first_app $ sudo gem install json -v '1.8.1'
Building native extensions. This could take a while...
ERROR: Error installing json:
ERROR: Failed to build gem native extension.
/usr/bin/ruby1.9.1 extconf.rb
/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require': cannot load such file -- mkmf (LoadError)
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:inrequire'
from extconf.rb:1:in `'
Gem files will remain installed in /var/lib/gems/1.9.1/gems/json-1.8.1 for inspection.
Results logged to /var/lib/gems/1.9.1/gems/json-1.8.1/ext/json/ext/generator/gem_make.out
ben#ben-X551CA ~/first_rails_project/bens_first_app $
So running this worked for me:
sudo apt-get install ruby1.9.1-dev
Suppose the -dev package was needed?
If #BenLawton answer doesn't work try this (work for me on Ubuntu 16.04):
sudo apt-get install ruby-full
https://www.ruby-lang.org/en/documentation/installation/#apt
I know there are few questions like this, but non of them seems is solving my problem.
I have a script that I want to run - my_script.rb
I am using ruby-2.0.0-p353 and rubygems 2.2.2
I have installed it via rvm. When switch to use my custom-made gemset , gem env says:
RubyGems Environment:
- RUBYGEMS VERSION: 2.2.2
- RUBY VERSION: 2.0.0 (2013-11-22 patchlevel 353) [x86_64-linux]
I use in my_script.rb:
#!/usr/bin/env ruby
# -*- coding: utf-8 -*-
require 'mysql2'
I have installed the gems via bundler and the gem list is saying:
Installing i18n (0.6.9)
Installing multi_json (1.8.2)
Installing activesupport (3.2.8)
Installing builder (3.0.4)
Installing activemodel (3.2.8)
Installing activerecord (3.2.8)
Installing treetop (1.4.15)
Installing mime (0.2.0)
Installing mysql2 (0.3.14)
Using bundler (1.3.5)
Your bundle is complete!
It was installed into ./vendor/bundle
Note: my_script.rb and /vendor/bundle are in the same directory
And now the question:
Then why it is saying:
kernel_require.rb:55:in `require': cannot load such file -- mysql2 (LoadError)
when I try to run my script with ./my_script
UPDATE:
An update to myself :)
If this error occurs, try running a script with bundle exec as this was the primary intention of installing gems in bundle :)
I have been running the script the same way as I have used to on my server, but so I have forgot the most obvious and logical way - to run it with bundle exec ./my_script.rb as this was the primary goal for this ;)
You have installed them via bundlers, so you should let bundler require the gems. Add the following to the top of your script:
require 'bundler'
Bundler.require
Hope it helps.
➜ ~ rvm -v
rvm 1.10.2 by Wayne E. Seguin <wayneeseguin#gmail.com>, Michal Papis <mpapis#gmail.com> [https://rvm.beginrescueend.com/]
➜ ~ ruby -v
ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.2.0]
➜ ~ rails -v
/Users/hb/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs': Could not find railties (>= 0) amongst [bigdecimal-1.1.0, io-console-0.3, json-1.5.4, minitest-2.5.1, rake-0.9.2.2, rdoc-3.9.4] (Gem::LoadError)
from /Users/hb/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec'
from /Users/hb/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems.rb:1208:in `gem'
from /Users/hb/.rvm/gems/ruby-1.9.3-p0/bin/rails:18:in `<main>'
➜ ~
I installed a clean installation of ruby just now, and rails, I removed all my previous gems, and I still keep getting this error. Any ideas ? And yes, I had this error before, and this is what I did
A little more info:
➜ ~ gem list
*** LOCAL GEMS ***
actionmailer (3.2.1)
actionpack (3.2.1)
activemodel (3.2.1)
activerecord (3.2.1)
activeresource (3.2.1)
activesupport (3.2.1)
arel (3.0.0)
builder (3.0.0)
bundler (1.0.22 ruby)
erubis (2.7.0)
hike (1.2.1)
i18n (0.6.0)
journey (1.0.1)
json (1.6.5)
mail (2.4.1)
mime-types (1.17.2)
multi_json (1.0.4)
polyglot (0.3.3)
rack (1.4.1)
rack-cache (1.1)
rack-ssl (1.3.2)
rack-test (0.6.1)
rails (3.2.1)
railties (3.2.1)
rake (0.9.2.2, 0.9.2)
rdoc (3.12)
sprockets (2.3.0, 2.1.2)
thor (0.14.6)
tilt (1.3.3)
treetop (1.4.10)
tzinfo (0.3.31)
➜ ~ gem install rails
Successfully installed rails-3.2.1
1 gem installed
Installing ri documentation for rails-3.2.1...
Installing RDoc documentation for rails-3.2.1...
➜ ~ rails -v
/Users/hb/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs': Could not find railties (>= 0) amongst [bigdecimal-1.1.0, io-console-0.3, json-1.5.4, minitest-2.5.1, rake-0.9.2.2, rdoc-3.9.4] (Gem::LoadError)
from /Users/hb/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec'
from /Users/hb/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems.rb:1208:in `gem'
from /Users/hb/.rvm/gems/ruby-1.9.3-p0/bin/rails:18:in `<main>'
➜ ~
It means your Rails installation is corrupted or incomplete. If you list your gems, chances are you won't find railties
$ gem list
Run the command
$ gem install rails
again. It will download and install missing dependencies, including railties.
I ran into the same problem and, in my case, it turned out to be because I had installed using sudo - it does not necessarily make rails available to ordinary users. Try running just gem install rails if you previously ran sudo gem install rails.
Worked for me
rvm reinstall 1.9.3
then
gem install rails
I ran into this same issue. If you're using RVM it's possible you switched to the wrong Ruby version which causes a gem load error if the directory uses a different version than the one you are currently set to use.
To fix, type rvm use -yourrubyversion in the app's directory in terminal. For example, if your app is set up to use ruby 1.9.3 type rvm use -1.9.3.
RVM works by separating your gems by ruby version by app, so if you switch to a different ruby version RVM will separate previously used and installed gems from the different ruby version, which is why you may be seeing tho issue.
rvm implode was the answer. Something probably went wrong before, now everything works after a rvm reinstall.
Maybe you installed two or more version of rails and railties.
gem uninstall railties
gem uninstall rails
then reinstall.
I got the same error when I installed ruby 1.9.3p194
and then I reinstalled ruby and rails
Simone's answer is great. However, if you already have your Rails gem in your Gemfile, just try to use bundle exec instead:
bundle exec rails c
And that should suffice. If not, then add
bundle install
before the mentioned command.
I also had this issue after I installed ZSH (Wanted to mess with it's templates.)
Ran
brew update
which did find some updates I wasn't missing before, but in the end
gem install rails
suddenly completely re-installing the rail/ties system. Unsure why ZSH removed it.
Uninstalling ruby, and railsinstaller and then installing railsinstaller again worked great for me!
I did 'gem install rails' on my system (ubuntu) and it installed the missing gems approx 28 of them then i did 'gem list' to check and it was all there.
I am trying to install rails on Ubuntu 10.04. So far, I've executed these commands:
apt-get install build-essential libapache2-mod-passenger apache2 rubygems ruby1.8-dev libopenssl-ruby
gem install fastthread
gem install rails
Fastthread installed easily. However, trying to install rails results in:
ERROR: Error installing rails:
bundler requires RubyGems version >= 1.3.6
So, I tried gem -v which returned 1.3.5.
How do I upgrade rubygems? apt-get won't install above 1.3.5. And gem update --system results in:
ERROR: While executing gem ... (RuntimeError)
gem update --system is disabled on Debian. RubyGems can be updated using the official Debian repositories by aptitude or apt-get.
So right now I simply can't install rails, because I need a newer version of rubygems, and ubuntu won't let me upgrade my current version of rubygems.
As a side note, i tried installed rails via apt-get install rails which seemed to work, but I don't see rails as a gem when i type gem list. What's the deal with that?
Another note: The result of gem list is:
*** LOCAL GEMS ***
abstract (1.0.0)
actionmailer (3.0.1, 3.0.0)
actionpack (3.0.1, 3.0.0)
activemodel (3.0.1, 3.0.0)
activerecord (3.0.1, 3.0.0)
activeresource (3.0.1, 3.0.0)
activesupport (3.0.1, 3.0.0)
arel (2.0.1, 1.0.1)
builder (2.1.2)
erubis (2.6.6)
fastthread (1.0.7)
i18n (0.4.2)
mail (2.2.9)
mime-types (1.16)
mysql (2.8.1)
polyglot (0.3.1)
rack (1.2.1)
rack-mount (0.6.13)
rack-test (0.5.6)
railties (3.0.1, 3.0.0)
rake (0.8.7)
rubygems-update (1.3.7)
thor (0.14.4)
treetop (1.4.8)
tzinfo (0.3.23)
I assume installing rails via apt-get installed those gems? Prior to installing rails through apt-get I only had mysql and fastthread.
There is also a gem available which handles the update
sudo gem install rubygems-update
sudo /var/lib/gems/1.8/bin/update_rubygems
You have to manually install rubygems 1.3.7 (wget from website, extract, run setup.rb).
Install rvm and take control of your ruby environment.
http://rvm.io/
This may be a newer way of doing it that wasn't available before, but I ran
sudo gem update --system
and it gave me the latest version.
For some reason, Debian/Ubuntu Ruby package doesn't include the RubyGems library. Even worst, RubyGems has been bundled into Ruby 1.9.x but if you try to install it via apt-get, the package manager will force you to install them as two separate packages.
Debian/Ubuntu RubyGems package is outdated, as you noticed, and to make things even more complicated you can't upgrade the packaged version of RubyGems just installing a new RubyGems versions on top of it because the system is patched to prevent you to complete the task, as you experienced.
My suggestion is to avoid using the Ubuntu/Debian pckaged version.
The alternatives are:
for a development system, use RVM
for a production server, install Ruby from source. If you want Ruby < 1.9 you can use Ruby Enterprise edition that is also available as Debian/Ubuntu package. If you want Ruby 1.9.x, compile it from the source.