git push heroku failing because trying to install development gems. BUNDLE_WITHOUT command not working - ruby-on-rails-3

I get an error after issuing the git push heroku command. This initially looked like something to be solved by using the heroku config command to bundle without the development:test gems. However, I used that command as discussed in this similar writeup [ Heroku's trying to install development gems even after I've told it not to ] and it still doesn't work.
The line "Using --without development:test" in the push message below seems to indicate the BUNDLE_WITHOUT config command worked, so maybe this is a gemfile or other issue?
Thanks!
$ git push heroku
Counting objects: 64, done.
Delta compression using up to 2 threads.
Compressing objects: 100% (42/42), done.
Writing objects: 100% (48/48), 6.03 KiB, done.
Total 48 (delta 15), reused 0 (delta 0)
-----> Heroku receiving push
-----> Rails app detected
-----> Detected Rails is not set to serve static_assets
Installing rails3_serve_static_assets... done
-----> Configure Rails 3 to disable x-sendfile
Installing rails3_disable_x_sendfile... done
-----> Configure Rails to log to stdout
Installing rails_log_stdout... done
-----> Gemfile detected, running Bundler version 1.0.7
Unresolved dependencies detected; Installing...
Using --without development:test
Fetching source index for http://rubygems.org/
Installing rake (0.8.7)
Installing ZenTest (4.5.0)
Installing abstract (1.0.0)
Installing activesupport (3.0.3)
Installing builder (2.1.2)
Installing i18n (0.5.0)
Installing activemodel (3.0.3)
Installing erubis (2.6.6)
Installing rack (1.2.2)
Installing rack-mount (0.6.14)
Installing rack-test (0.5.7)
Installing tzinfo (0.3.25)
Installing actionpack (3.0.3)
Installing mime-types (1.16)
Installing polyglot (0.3.1)
Installing treetop (1.4.9)
Installing mail (2.2.15)
Installing actionmailer (3.0.3)
Installing arel (2.0.9)
Installing activerecord (3.0.3)
Installing activeresource (3.0.3)
Installing autotest (4.4.6)
Installing sys-uname (0.8.5) with native extensions
Installing autotest-fsevent (0.2.5) with native extensions /usr/ruby1.8.7/lib/ruby/site_ruby/1.8/rubygems/installer.rb:483:in `build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)
/usr/ruby1.8.7/bin/ruby extconf.rb
extconf.rb:19: Only Darwin (Mac OS X) systems are supported (RuntimeError)
Gem files will remain installed in /disk1/tmp/build_258oz7hi5972n/.bundle/gems/ruby/1.8/gems/autotest-fsevent-0.2.5 for inspection.
Results logged to /disk1/tmp/build_258oz7hi5972n/.bundle/gems/ruby/1.8/gems/autotest-fsevent-0.2.5/ext/fsevent/gem_make.out
from /usr/ruby1.8.7/lib/ruby/site_ruby/1.8/rubygems/installer.rb:446:in `each'
from /usr/ruby1.8.7/lib/ruby/site_ruby/1.8/rubygems/installer.rb:446:in `build_extensions'
from /usr/ruby1.8.7/lib/ruby/site_ruby/1.8/rubygems/installer.rb:198:in `install'
from /usr/ruby1.8.7/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/source.rb:95:in `install'
from /usr/ruby1.8.7/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/installer.rb:55:in `run'
from /usr/ruby1.8.7/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/spec_set.rb:12:in `each'
from /usr/ruby1.8.7/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/spec_set.rb:12:in `each'
from /usr/ruby1.8.7/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/installer.rb:44:in `run'
from /usr/ruby1.8.7/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/installer.rb:8:in `install'
from /usr/ruby1.8.7/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/cli.rb:225:in `install'
from /usr/ruby1.8.7/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/vendor/thor/task.rb:22:in `send'
from /usr/ruby1.8.7/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/vendor/thor/task.rb:22:in `run'
from /usr/ruby1.8.7/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/vendor/thor/invocation.rb:118:in `invoke_task'
from /usr/ruby1.8.7/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/vendor/thor.rb:246:in `dispatch'
from /usr/ruby1.8.7/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/vendor/thor/base.rb:389:in `start'
from /usr/ruby1.8.7/lib/ruby/gems/1.8/gems/bundler-1.0.7/bin/bundle:13
from /usr/ruby1.8.7/bin/bundle:19:in `load'
from /usr/ruby1.8.7/bin/bundle:19
FAILED: http://devcenter.heroku.com/articles/bundler
! Heroku push rejected, failed to install gems via Bundler
error: hooks/pre-receive exited with error code 1
To git#heroku.com:blooming-mountain-199.git
! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'git#heroku.com:blooming-mountain-199.git'
Gemfile...
source 'http://rubygems.org'
gem 'rails', '3.0.3'
gem 'sqlite3', '1.3.3', :require => 'sqlite3'
gem 'gravatar_image_tag', '1.0.0.pre2'
gem 'will_paginate', '3.0.pre2'
gem "nokogiri"
gem "geokit"
gem "rack", "~>1.1"
group :development, :test do
gem 'rspec-rails', '2.5.0'
gem 'annotate-models', '1.0.4'
gem 'faker', '0.3.1'
gem 'autotest-fsevent' if RUBY_PLATFORM =~ /darwin/
gem 'rspec', '2.5.0'
gem 'webrat', '0.7.1'
gem 'spork', '0.9.0.rc4'
gem 'factory_girl_rails', '1.0'
gem 'ZenTest'
gem 'autotest'
gem 'autotest-rails'
gem 'autotest-growl'
end

Well, the problem is clearly with the autotest-fsevent getting loaded when you push to Heroku, which is not Darwin-based. Although you do have a conditional following the gem 'autotest-fsevent' statement, the gem is still trying to load when you deploy to Heroku. There are two likely causes for this.
The first, is that another gem is requiring it. If nothing else, autotest-growl should also be Darwin-only. I'm not sure these are related, but I'd still double-check.
The next issue is to make sure that Gemfile.lock isn't getting pushed. If you last ran bundle install on Darwin, it's possible that the gem got locked into the dependencies that way. git rm Gemfile.lock before you commit and push to Heroku.
Finally, my favored solution is not to use autotest. I'm not sure if that's an option for you, but I found it to be annoying when I did use it I use RSpec and Cucumber. I realize this last suggestion is a non-answer, but I don't like including platform-dependent gems even in testing, just because when you go to staging, little annoyances like this have a tendency of cropping up.
I'm not sure why Rails Tutorial is still using ZenTest and autotest, I don't know anyone who does... that might be changing, a friend went to the Rails Tutorial session at RailsConf and said Michael was actually noting errata during the tutorial, so maybe it'll be different in a future version.
As a final note, out of curiosity, if you are on OS X, how did you install Ruby? It's in a very odd place.

Related

Bundle exec doesn't work

I am trying to use rails-erd. The last time I used it was in February and worked fine
I tried using erd and bundle exec erd
I am getting this error.. I have rails 4 in another project, but in this project I use rails 3.2.15 in the gem file
Loading application in 'my_app'...
WARN: Unresolved specs during Gem::Specification.reset:
activerecord (>= 3.0)
i18n (>= 0.6.4, ~> 0.6)
multi_json (~> 1.3)
tzinfo (~> 0.3.37)
WARN: Clearing out unresolved specs.
Please report a bug if this causes problems.
Failed: Gem::LoadError: You have already activated activesupport 4.0.0, but your Gemfile requires activesupport 3.2.15. Using bundle exec may solve this.
What does this mean and how do I solve this?
The error shows that you have already activated activesupport 4.0.0 but in your gemfile.lock file the version of the activesupport is 3.2.15.
So simply delete the gemfile.lock file and again bundle install
It will take the latest version of activesupportor, or either you can change the version manually.
In the Gemfile of the app specify the version of Rails if you haven't done so:
gem 'rails', '3.2.15'
Run bundle install then try running the script again using bundle exec.
If it still doesn't work try uninstalling rails 4 and then running it.
gem uninstall rails
Ideally if you're executing your script with bundle exec it always execute the script in the context of the current bundle using the Gemfile.

Deploy ROR to heroku fails due to sqlite3 fails

I've try the method from others post, but still cannot solve it.
I push my file to heroku but it have some error to the sqlite3.
After I install it, it still didn't work.
Below is my code
Counting objects: 82, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (70/70), done.
Writing objects: 100% (82/82), 3.00 MiB | 238 KiB/s, done.
Total 82 (delta 4), reused 0 (delta 0)
-----> Removing .DS_Store files
-----> Ruby/Rails app detected
-----> Installing dependencies using Bundler version 1.3.2
Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin --deployment
Fetching gem metadata from https://rubygems.org/.........
Fetching gem metadata from https://rubygems.org/..
Installing rake (10.0.4)
Installing i18n (0.6.4)
Installing multi_json (1.7.3)
Installing activesupport (3.2.11)
Installing builder (3.0.4)
Installing activemodel (3.2.11)
Installing erubis (2.7.0)
Installing journey (1.0.4)
Installing rack (1.4.5)
Installing rack-cache (1.2)
Installing rack-test (0.6.2)
Installing hike (1.2.2)
Installing tilt (1.4.1)
Installing sprockets (2.2.2)
Installing actionpack (3.2.11)
Installing mime-types (1.23)
Installing polyglot (0.3.3)
Installing treetop (1.4.12)
Installing mail (2.4.4)
Installing actionmailer (3.2.11)
Installing arel (3.0.2)
Installing tzinfo (0.3.37)
Installing activerecord (3.2.11)
Installing activeresource (3.2.11)
Installing coffee-script-source (1.6.2)
Installing execjs (1.4.0)
Installing coffee-script (2.2.0)
Installing rack-ssl (1.3.3)
Installing json (1.8.0)
Installing rdoc (3.12.2)
Installing thor (0.18.1)
Installing railties (3.2.11)
Installing coffee-rails (3.2.2)
Installing jquery-rails (2.2.1)
Using bundler (1.3.2)
Installing rails (3.2.11)
Installing sass (3.2.9)
Installing sass-rails (3.2.6)
Installing sqlite3 (1.3.7)
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/usr/local/bin/ruby extconf.rb
checking for sqlite3.h... no
sqlite3.h is missing. Try 'port install sqlite3 +universal'
or 'yum install sqlite-devel' and check your shared library search path (the
location where your sqlite3 shared library is located).
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/local/bin/ruby
--with-sqlite3-dir
--without-sqlite3-dir
--with-sqlite3-include
--without-sqlite3-include=${sqlite3-dir}/include
--with-sqlite3-lib
--without-sqlite3-lib=${sqlite3-dir}/lib
--enable-local
--disable-local
Gem files will remain installed in /tmp/build_2ghtqnawaxqqm/vendor/bundle/ruby/1.9.1/gems/sqlite3-1.3.7 for inspection.
Results logged to /tmp/build_2ghtqnawaxqqm/vendor/bundle/ruby/1.9.1/gems/sqlite3-1.3.7/ext/sqlite3/gem_make.out
An error occurred while installing sqlite3 (1.3.7), and Bundler cannot continue.
Make sure that `gem install sqlite3 -v '1.3.7'` succeeds before bundling.
!
! Failed to install gems via Bundler.
!
! Heroku push rejected, failed to compile Ruby/rails app
To git#heroku.com:peaceful-reef-2102.git
! [remote rejected] master -> master (pre-receive hook declined)
And this is my gemfile:
source 'https://rubygems.org'
gem 'rails', '3.2.11'
# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'
gem 'sqlite3'
# Gems used only for assets and not required
# in production environments by default.
group :assets do
gem 'sass-rails', '~> 3.2.3'
gem 'coffee-rails', '~> 3.2.1'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', :platforms => :ruby
gem 'uglifier', '>= 1.0.3'
end
gem 'jquery-rails'
# To use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'
# To use Jbuilder templates for JSON
# gem 'jbuilder'
# Use unicorn as the app server
# gem 'unicorn'
# Deploy with Capistrano
# gem 'capistrano'
# To use debugger
# gem 'debugger'
I don't know what happen, please help me!
Heroku doesn't support sqlite, you need to add pg gem (postgres) and remove sqlite gem

What's wrong with Bundler working with RubyGems to push a Git repo to Heroku?

I've made sure that all the files are in the root of the repository as recommended in this discussion. However, as I follow the instructions in this section of the book, I can't get through the section without the problems. What do you think is happening with my system that's causing the error? I have no clue at the moment of what the problem means despite reading the following in the log. Thanks in advance for your help!
stanley#ubuntu:~/rails_sample/first_app$ git push heroku master
Warning: Permanently added the RSA host key for IP address '50.19.85.156' to the list of known hosts.
Counting objects: 96, done.
Compressing objects: 100% (79/79), done.
Writing objects: 100% (96/96), 28.81 KiB, done.
Total 96 (delta 22), reused 0 (delta 0)
-----> Heroku receiving push
-----> Ruby/Rails app detected
-----> Installing dependencies using Bundler version 1.2.0.pre
Running: bundle install --without development:test --path vendor/bundle --binstubs bin/ --deployment
Fetching gem metadata from https://rubygems.org/.......
Installing rake (0.9.2.2)
Installing i18n (0.6.0)
Installing multi_json (1.3.5)
Installing activesupport (3.2.3)
Installing builder (3.0.0)
Installing activemodel (3.2.3)
Installing erubis (2.7.0)
Installing journey (1.0.3)
Installing rack (1.4.1)
Installing rack-cache (1.2)
Installing rack-test (0.6.1)
Installing hike (1.2.1)
Installing tilt (1.3.3)
Installing sprockets (2.1.3)
Installing actionpack (3.2.3)
Installing mime-types (1.18)
Installing polyglot (0.3.3)
Installing treetop (1.4.10)
Installing mail (2.4.4)
Installing actionmailer (3.2.3)
Installing arel (3.0.2)
Installing tzinfo (0.3.33)
Installing activerecord (3.2.3)
Installing activeresource (3.2.3)
Installing coffee-script-source (1.3.3)
Installing execjs (1.3.2)
Installing coffee-script (2.2.0)
Installing rack-ssl (1.3.2)
Installing json (1.7.3) with native extensions
Installing rdoc (3.12)
Installing thor (0.14.6)
Installing railties (3.2.3)
Installing coffee-rails (3.2.2)
Installing jquery-rails (2.0.2)
Using bundler (1.2.0.pre)
Installing rails (3.2.3)
Installing sass (3.1.18)
Installing sass-rails (3.2.5)
Installing sqlite3 (1.3.6) with native extensions
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/usr/local/bin/ruby extconf.rb
checking for sqlite3.h... no
sqlite3.h is missing. Try 'port install sqlite3 +universal'
or 'yum install sqlite-devel' and check your shared library search path (the
location where your sqlite3 shared library is located).
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/local/bin/ruby
--with-sqlite3-dir
--without-sqlite3-dir
--with-sqlite3-include
--without-sqlite3-include=${sqlite3-dir}/include
--with-sqlite3-lib
--without-sqlite3-lib=${sqlite3-dir}/lib
--enable-local
--disable-local
Gem files will remain installed in /tmp/build_3tplrxvj7qa81/vendor/bundle/ruby/1.9.1/gems/sqlite3-1.3.6 for inspection.
Results logged to /tmp/build_3tplrxvj7qa81/vendor/bundle/ruby/1.9.1/gems/sqlite3-1.3.6/ext/sqlite3/gem_make.out
An error occurred while installing sqlite3 (1.3.6), and Bundler cannot continue.
Make sure that `gem install sqlite3 -v '1.3.6'` succeeds before bundling.
!
! Failed to install gems via Bundler.
!
! Heroku push rejected, failed to compile Ruby/rails app
To git#heroku.com:growing-mountain-2788.git
! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'git#heroku.com:growing-mountain-2788.git'
------Gemfile------------------------
As requested, here's the auto-generated gemfile:
source 'https://rubygems.org'
gem 'rails', '3.2.3'
# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'
gem 'sqlite3'
gem 'json'
# Gems used only for assets and not required
# in production environments by default.
group :assets do
gem 'sass-rails', '~> 3.2.3'
gem 'coffee-rails', '~> 3.2.1'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', :platform => :ruby
gem 'uglifier', '>= 1.0.3'
end
gem 'jquery-rails'
# To use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'
# To use Jbuilder templates for JSON
# gem 'jbuilder'
# Use unicorn as the app server
# gem 'unicorn'
# Deploy with Capistrano
# gem 'capistrano'
# To use debugger
# gem 'ruby-debug'
Heroku tries to use postgres automatically. (good thing, as sqlite is NOT suitable for prosuction)
The sqlite scripts are compatible with postgres, so no change is required.
Do this in your Gemfile :
gem "sqlite3", :groups => [:development, :test]
gem "pg", groups => [:production]
Be aware that there might be behavior differences between sqlite and postgres. It is strongly recommended to use postgres on your development environment
see https://devcenter.heroku.com/articles/how-do-i-use-sqlite3-for-development
The problem is missing headers files to sqlite3 on the server and gem cannot build the extension. Do you need sqlite? Try remove it from Gemfile or if this is possible install sqlite3-dev package on the server.
I had this same problem, the problem went away when I completed my push to GitHub.
I needed to complete this step:
$ git remote add origin ...
$ git push -u origin master
After that it pushed to heroku without any problems.
Replace the SQLite gem with postgres's pg gem. Heroku uses Postgres and you don't need SQLite in production mode anyway.
Replace sqlite in your Gemfile with 'gem pg'
Heroku use PostgreSQL, not SQLite.
Follow this instructions to solve your problem https://devcenter.heroku.com/articles/rails3

Trouble installing Mongoid with Rails 3 on Windows

In my Gemfile:
gem "mongoid", "~> 2.3"
gem "bson_ext", "~> 1.4"
When I run bundle install I get the error below:
Bundler could not find compatible versions for gem "activemodel":
In Gemfile:
mongoid (~> 2.3) x86-mingw32 depends on
activemodel (~> 3.1) x86-mingw32
rails (= 3.0.6) x86-mingw32 depends on
activemodel (3.0.6)
I've tried pointing to github for the version, as is suggested in some other posts, but when I do this and run bundle install, I get another error:
Fetching http://github.com/mongoid/mongoid.git
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/source.rb:579:in
``': No such file or directory - git clone "http://github.com/mongoid/mongoid.gi
t" "C:/Ruby192/lib/ruby/gems/1.9.1/cache/bundler/git/mongoid-96bbbaf83f2d1e3487e
c2c95b9e5148015a7a346" --bare --no-hardlinks (Errno::ENOENT)
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/sour
ce.rb:579:in `git'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/sour
ce.rb:653:in `cache'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/sour
ce.rb:551:in `specs'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/defi
nition.rb:356:in `block in converge_locked_specs'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/defi
nition.rb:345:in `each'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/defi
nition.rb:345:in `converge_locked_specs'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/defi
nition.rb:143:in `resolve'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/defi
nition.rb:90:in `specs'
Any tips are appreciated. Thanks!
If I recall correctly, bson_ext needs to be built natively. This means that somehow you must build it on Windows. The errors are pointing to x86-mingw32, which can be downloaded from here
The reason you would need that is because there are a couple of libraries that are platform dependent. Hope this sets you in the right direction.

Is the current Rails 3.0.5 and Bundler dependency set wrong?

On Windows 7 with Ruby 1.9.2-p180 and Rails 3.0.5 installed, if I
rails new trytry
cd trytry
bundle install
it will show
C:\ror\trytry>bundle install
c:/ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.0/lib/bundler/ui.rb:46:in `<class:UI>': uninitialized constant Gem::SilentUI (NameError)
from c:/ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.0/lib/bundler/ui.rb:2:in `<module:Bundler>'
from c:/ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.0/lib/bundler/ui.rb:1:in `<top (required)>'
from c:/ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.0/lib/bundler/cli.rb:17:in `initialize'
from c:/ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.0/lib/bundler/vendor/thor.rb:246:in `new'
from c:/ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.0/lib/bundler/vendor/thor.rb:246:in `dispatch'
from c:/ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.0/lib/bundler/vendor/thor/base.rb:389:in `start'
from c:/ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.0/bin/bundle:13:in `<top (required)>'
from c:/Ruby192/bin/bundle:19:in `load'
from c:/Ruby192/bin/bundle:19:in `<main>
only after a
gem install bundler
or probably a
gem update bundler
then the bundle install will work. So looks like the Rails 3.0.5 needs a newer bundler which was not listed correctly in the dependency? Otherwise when I gem install rails for 3.0.5, it should have updated bundler as well, is that right?
You've got an older version of Bundler installed, you will need to run gem install bundler to update it to the latest version.
Rails depends on a version of Bundler matching the dependency version of ~> 1.0. If you've got a version of Bundler installed, such as 1.0.0, the process of gem install rails sees this dependency is matched already and so won't update Bundler. Therefore, you need to run gem install bundler to update it to the latest version.