No such file to load -- zip/zip (MissingSourceFile) when running cucumber - ruby-on-rails

It was been a long time I haven't run cucumber in my project. It's running good before but now, when I try to run cucumber features, I have this error:
Using the default profile...
no such file to load -- zip/zip (MissingSourceFile)
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `polyglot_original_require'
/home/florence/.gem/ruby/1.8/gems/polyglot-0.2.9/lib/polyglot.rb:70:in `require'
/home/florence/NetBeansProjects/famicity/vendor/rails/activesupport/lib/active_support/dependencies.rb:158:in `require'
/home/florence/NetBeansProjects/famicity/app/controllers/albums_controller.rb:1
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `polyglot_original_require'
/home/florence/.gem/ruby/1.8/gems/polyglot-0.2.9/lib/polyglot.rb:70:in `require'
/home/florence/NetBeansProjects/famicity/vendor/rails/activesupport/lib/active_support/dependencies.rb:158:in `require'
/home/florence/NetBeansProjects/famicity/vendor/rails/activesupport/lib/active_support/dependencies.rb:265:in `require_or_load'
/home/florence/NetBeansProjects/famicity/vendor/rails/activesupport/lib/active_support/dependencies.rb:224:in `depend_on'
/home/florence/NetBeansProjects/famicity/vendor/rails/activesupport/lib/active_support/dependencies.rb:136:in `require_dependency'
/home/florence/NetBeansProjects/famicity/vendor/rails/railties/lib/initializer.rb:414:in `load_application_classes'
/home/florence/NetBeansProjects/famicity/vendor/rails/railties/lib/initializer.rb:413:in `each'
/home/florence/NetBeansProjects/famicity/vendor/rails/railties/lib/initializer.rb:413:in `load_application_classes'
/home/florence/NetBeansProjects/famicity/vendor/rails/railties/lib/initializer.rb:411:in `each'
/home/florence/NetBeansProjects/famicity/vendor/rails/railties/lib/initializer.rb:411:in `load_application_classes'
/home/florence/NetBeansProjects/famicity/config/../vendor/rails/railties/lib/initializer.rb:197:in `process'
/home/florence/NetBeansProjects/famicity/config/../vendor/rails/railties/lib/initializer.rb:113:in `send'
/home/florence/NetBeansProjects/famicity/config/../vendor/rails/railties/lib/initializer.rb:113:in `run'
/home/florence/NetBeansProjects/famicity/config/environment.rb:14
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `polyglot_original_require'
/home/florence/.gem/ruby/1.8/gems/polyglot-0.2.9/lib/polyglot.rb:70:in `require'
/home/florence/NetBeansProjects/famicity/features/support/env.rb:8
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `polyglot_original_require'
/home/florence/.gem/ruby/1.8/gems/polyglot-0.2.9/lib/polyglot.rb:70:in `require'
/home/florence/.gem/ruby/1.8/gems/cucumber-0.6.2/bin/../lib/cucumber/rb_support/rb_language.rb:124:in `load_code_file'
/home/florence/.gem/ruby/1.8/gems/cucumber-0.6.2/bin/../lib/cucumber/step_mother.rb:84:in `load_code_file'
/home/florence/.gem/ruby/1.8/gems/cucumber-0.6.2/bin/../lib/cucumber/step_mother.rb:76:in `load_code_files'
/home/florence/.gem/ruby/1.8/gems/cucumber-0.6.2/bin/../lib/cucumber/step_mother.rb:75:in `each'
/home/florence/.gem/ruby/1.8/gems/cucumber-0.6.2/bin/../lib/cucumber/step_mother.rb:75:in `load_code_files'
/home/florence/.gem/ruby/1.8/gems/cucumber-0.6.2/bin/../lib/cucumber/cli/main.rb:48:in `execute!'
/home/florence/.gem/ruby/1.8/gems/cucumber-0.6.2/bin/../lib/cucumber/cli/main.rb:20:in `execute'
/home/florence/.gem/ruby/1.8/gems/cucumber-0.6.2/bin/cucumber:8
/usr/bin/cucumber:19:in `load'
/usr/bin/cucumber:19
Herewith, my gem list :
actionmailer (2.3.8, 2.3.5, 2.3.4, 2.3.3, 2.3.2, 1.3.3)
actionpack (2.3.8, 2.3.5, 2.3.4, 2.3.3, 2.3.2, 1.13.3)
actionwebservice (1.2.3)
activerecord (2.3.8, 2.3.5, 2.3.4, 2.3.3, 2.3.2, 1.15.3)
activeresource (2.3.8, 2.3.5, 2.3.4, 2.3.3, 2.3.2)
activesupport (2.3.8, 2.3.5, 2.3.4, 2.3.3, 2.3.2, 1.4.2)
adzap-ar_mailer (2.1.8, 2.1.5)
aws-s3 (0.6.2)
builder (2.1.2)
calendar_date_select (1.16.1, 1.15)
cgi_multipart_eof_fix (2.5.0)
chronic (0.2.3)
color (1.4.1)
contacts (1.2.3)
cucumber (0.6.2)
cucumber-rails (0.2.4)
daemons (1.0.10)
database_cleaner (0.5.0, 0.4.3)
devise (1.0.7)
diff-lcs (1.1.2)
digitalpardoe-rflickr (1.1.2)
eventmachine (0.12.8)
facebooker (1.0.44)
fastercsv (1.5.0)
fastthread (1.0.7)
gdata (1.1.1)
gem_plugin (0.2.3)
geokit (1.5.0)
hoe (2.3.2)
hpricot (0.8.1)
icalendar (1.1.4)
json (1.1.7)
json_pure (1.4.3, 1.2.0)
levenshtein (0.2.0)
lockfile (1.4.3)
macaddr (1.0.0)
memcache-client (1.7.4)
mime-types (1.16)
mocha (0.9.7)
money (2.1.4)
mongrel (1.1.5)
mysql (2.8.1, 2.7)
net-http-persistent (1.2.1)
newrelic_rpm (2.9.9)
nokogiri (1.4.1)
objectify-xml (0.2.3)
packet (0.1.15)
paperclip (2.3.1.1)
paypal (2.0.0)
pdf-writer (1.1.8)
polyglot (0.2.9)
rack (1.0.1, 1.0.0)
rack-test (0.5.3)
rails (2.3.8, 2.3.5, 2.3.4, 2.3.3, 2.3.2)
rake (0.8.7)
rc-rest (4.0)
rest-client (1.0.3)
rflickr (2006.02.01)
rmagick (2.13.1)
rspec (1.3.0)
rspec-rails (1.3.2)
ruby-picasa (0.2.1)
rubyforge (2.0.4, 1.0.4)
rubygems-update (1.3.4)
rvideo-tecnobrat (0.9.4)
selenium-client (1.2.18)
term-ansicolor (1.0.4)
thin (1.2.7, 1.2.2)
transaction-simple (1.4.0)
treetop (1.4.3)
trollop (1.16.2)
ultrasphinx (1.11)
uuid (2.3.1)
validates_timeliness (2.2.2)
viddler (0.2.2)
warden (0.10.7)
webrat (0.7.0)
will_paginate (2.2.2)
xml-magic (0.1.1)
xml-simple (1.0.12)
Any help will be appreciate.
Thank's in advance.

Solutions above did not work. Solution for me was to require rubyzip version less than 1.0 i.e.
gem 'rubyzip', '~> 0.9.9'
It seems the latest selenium-webdriver now requires rubyzip < 1.0.0 so this shouldn't be a problem anymore but posting in case of it happens to someone else.

I found my answer, the problem is about a gem named "rubyzip" that missed in my gem list.

I don't quite understand the source of this error. It seems like a missing dependency of Active Support. Anyway, I was able to get past the error by explicitly adding the gem and requiring it in my Gemfile:
gem 'rubyzip', :require => 'zip/zip'

This is an interface-breaking change when moving rubyzip from 0.9.9 to 1.0.0. The issue is described here.
As a short-cut back to working, you may be interested in the zip-zip gem.

I had this issue as well when trying to run cucumber after updating selenium-webdriver.
The newest version of selenium now requires rubyzip ~> 1.0, which you will need to put in your Gemfile and explicitly require:
gem 'rubyzip', require: 'zip'

When using phusion passenger it seems that the gems have to be installed globally.
When I ran 'gem install ' from within my project directory it showed the gem as being installed but still resulted in the 'no such file to load...' error.
On a hunch I went outside the project directory and did a 'gem list' and the gem installed above was not listed, so I did 'gem install ' outside of the project directory and the error was fixed.
Please not that this was Phusion Passenger implementation not just rails.

Related

ruby on rails error while starting mongrel :: no such file to load -- svn/core (MissingSourceFile)

I am using rails 2.3.8 ...i have the following gems installed
abstract (1.0.0)
actionmailer (2.3.8)
actionpack (2.3.8)
activemodel (3.2.8)
activerecord (2.3.8)
activeresource (3.2.8, 2.3.8)
activesupport (2.3.18, 2.3.8)
ar-extensions (0.9.5)
arel (3.0.2)
athlite-actionwebservice (2.3.8)
aws-s3 (0.6.2)
aws-ses (0.4.4)
builder (3.0.0)
bundler (1.3.5)
cgi_multipart_eof_fix (2.5.0)
cmdparse (2.0.2)
coffee-rails (3.2.2)
coffee-script (2.2.0)
coffee-script-source (1.3.3)
columnize (0.3.1)
daemons (1.1.0)
dbi (0.4.5)
deprecated (2.0.1)
erubis (2.7.0)
execjs (2.0.2, 1.4.0)
fastthread (1.0.7)
ffi (0.6.3)
gem_plugin (0.2.3)
gmail (0.4.0)
gmail_xoauth (0.4.1)
hike (1.2.1)
hpricot (0.8.6)
httparty (0.8.3)
httpclient (2.3.4.1)
i18n (0.6.0)
journey (1.0.4)
jquery-rails (2.1.3)
json (1.8.1, 1.7.3)
linecache (0.43)
mail (2.4.4)
memcached (1.7.0)
mime (0.1)
mime-types (1.19)
mongrel (1.1.5)
mongrel_cluster (1.0.5)
multi_json (1.3.6)
multi_xml (0.5.5)
nokogiri (1.5.5)
oauth (0.4.7)
open4 (1.3.0)
polyglot (0.3.3)
rack (1.4.1, 1.1.6)
rack-cache (1.2)
rack-mount (0.6.14)
rack-ssl (1.3.2)
rack-test (0.6.1)
rails (2.3.8)
railties (3.2.8)
rake (10.1.0, 0.9.2.2)
rbx-require-relative (0.0.9)
rdoc (3.12)
ref (1.0.5)
rmagick (2.13.2)
ruby-debug (0.10.3)
ruby-debug-base (0.10.3)
rubygems-update (1.3.7)
sass (3.1.20)
sass-rails (3.2.5)
soap4r (1.5.8)
sprockets (2.1.3)
svn_wc (0.0.6)
thor (0.15.4)
tilt (1.3.3)
treetop (1.4.10)
tzinfo (0.3.33)
uglifier (1.2.7)
will_paginate (2.3.14)
xml-simple (1.1.2, 1.1.1)
but while restarting the mongrel server i am getting the following error in logs
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- svn/core (MissingSourceFile)
from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:158:in `require'
from /usr/lib/ruby/gems/1.8/gems/svn_wc-0.0.6/lib/svn_wc.rb:20
from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:36:in `require'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:158:in `require'
from /usr/local/sokrati/.deployments/tasteIt.11132013143834/tasteIt/app/models/chuknu/svnHandler.rb:3
from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:158:in `require'
from /usr/local/sokrati/.deployments/tasteIt.11132013143834/tasteIt/app/models/chuknu/generatorScript.rb:5
from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:158:in `require'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:265:in `require_or_load'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:224:in `depend_on'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:136:in `require_dependency'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/initializer.rb:414:in `load_application_classes'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/initializer.rb:413:in `each'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/initializer.rb:413:in `load_application_classes'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/initializer.rb:411:in `each'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/initializer.rb:411:in `load_application_classes'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/initializer.rb:197:in `process'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/initializer.rb:113:in `send'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/initializer.rb:113:in `run'
from /usr/local/sokrati/tasteIt/config/environment.rb:17
i have svn_wc installed
what is the exact cause of this?
I am new to RoR ..en elaborate answer would certainly help!
To cite from the Readme of the svn_wc gem:
Requires that the Subversion (SWIG) Ruby Bindings are installed.
(which could be as easy as)
Linux
Redhat and Fedora: yum install subversion-ruby
Ubuntu and Debian: apt-get install libsvn-ruby
OS X
sudo port install subversion-rubybindings
Windows
unknown,...
Thus, you need to install the ruby bindings for your subversion clients first. They are not part of the gem and are shipped with subversion. Depending on how you installed your Ruby, it might thus be very easy (see above) or rather difficult to obtain the correct bindings (when using rbenv or rvm).
I guess SVN library of ruby is not installed. Just try:
apt get install libsvn-ruby
it works most of the time.
if it doesnt work, I guess you have to follow what Holger just mentioned.
I fixed these problem with this:
sudo apt-get install libsvn-ruby

Gem Dependency Problems With Legacy App

I've inherited a rails 2.2 app and I'm having some trouble getting my local enviornment configured in a way that will allow me to work. Booting WEBrick gives me the following error:
./script/server
=> Booting WEBrick...
/Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/rails/gem_dependency.rb:224:in `specification': undefined method `version_requirements=' for #<Gem::Dependency:0x10b1ec6a0> (NoMethodError)
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/rails/plugin/locator.rb:81:in `plugins'
from /Users/swachtma/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:54:in `inject'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/rails/plugin/locator.rb:81:in `each'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/rails/plugin/locator.rb:81:in `inject'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/rails/plugin/locator.rb:81:in `plugins'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/rails/plugin/loader.rb:63:in `locate_plugins'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/rails/plugin/loader.rb:62:in `map'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/rails/plugin/loader.rb:62:in `locate_plugins'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/rails/plugin/loader.rb:27:in `all_plugins'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/rails/plugin/loader.rb:22:in `plugins'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/rails/plugin/loader.rb:45:in `add_plugin_load_paths'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/initializer.rb:269:in `add_plugin_load_paths'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/initializer.rb:135:in `process'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/initializer.rb:112:in `send'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/initializer.rb:112:in `run'
from /Users/swachtma/htdocs/skating_circle/config/environment.rb:20
from /Users/swachtma/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:54:in `gem_original_require'
from /Users/swachtma/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:54:in `require'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in `new_constants_in'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/commands/servers/webrick.rb:59
from /Users/swachtma/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:54:in `gem_original_require'
from /Users/swachtma/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:54:in `require'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in `new_constants_in'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require'
from /Users/swachtma/.rvm/gems/ruby-1.8.7-p371#skating/gems/rails-2.2.2/lib/commands/server.rb:49
from /Users/swachtma/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:54:in `gem_original_require'
from /Users/swachtma/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:54:in `require'
from ./script/server:3
I suspect I may need to downgrade my version of ruby-gems but I'm at a loss as to how to determine and appropriate version.
These are my local gems:
*** LOCAL GEMS ***
actionmailer (2.2.2)
actionpack (2.2.2)
activerecord (2.2.2)
activeresource (2.2.2)
activesupport (2.2.2)
aws-s3 (0.6.3)
builder (3.1.4)
bundler (1.2.3)
contacts (1.2.4)
diff-lcs (1.1.3)
fastercsv (1.5.5)
gdata (1.1.1)
heywatch (1.2.0)
highline (1.6.15)
hoptoad_notifier (2.4.11)
hpricot (0.8.6)
json (1.7.6)
mime-types (1.19)
mini_magick (3.4)
net-ssh (2.6.3)
rack (1.5.1)
rails (2.2.2)
rake (10.0.3, 0.8.7)
rest-client (1.6.7)
rspec (2.12.0, 1.3.2)
rspec-core (2.12.2, 2.6.4)
rspec-expectations (2.12.1, 2.6.0)
rspec-mocks (2.12.2, 2.6.0)
rspec-rails (1.3.2)
rubygems-bundler (1.1.0)
rubygems-update (1.4.2)
rvideo (0.9.3)
rvm (1.11.3.6)
subexec (0.2.2)
will_paginate (2.2.2)
xml-simple (1.1.2)
For Rails 2.2 gem version 1.4.2 works I guess. Try downgrading to 1.4.2
sudo gem update --system 1.4.2 or rvm install rubygems 1.4.2
Try this
gem install rubygems-update -v='1.4.2'
gem uninstall rubygems-update -v='1.5.0'
update_rubygems
Also, refer to these questions:
Gem dependency error in rails 2.3.4
ruby on rails: undefined method "version_requirements' when attempting to start server after new install

Rspec error: Diff is not a module

Following Ryan Bates railscast brand new to rspec.
I get
Guard is now watching at '/Users/thealey/Source/rpd31'
Guard::RSpec is running, with RSpec 2!
Running all specs
/Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/diff-lcs-1.1.3/lib/diff/lcs.rb:3:in `': Diff is not a module (TypeError)
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239:in `require'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239:in `block in require'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:227:in `load_dependency'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239:in `require'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-expectations-2.6.0/lib/rspec/expectations/differ.rb:1:in `'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239:in `require'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239:in `block in require'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:227:in `load_dependency'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239:in `require'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-expectations-2.6.0/lib/rspec/expectations.rb:9:in `'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239:in `require'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239:in `block in require'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:227:in `load_dependency'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239:in `require'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/expecting/with_rspec.rb:1:in `'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239:in `require'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239:in `block in require'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:227:in `load_dependency'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239:in `require'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/configuration.rb:207:in `block in expect_with'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/configuration.rb:202:in `each'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/configuration.rb:202:in `expect_with'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/configuration.rb:184:in `expectation_frameworks'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/configuration.rb:413:in `configure_expectation_framework'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/example_group.rb:165:in `ensure_example_groups_are_configured'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/example_group.rb:178:in `set_it_up'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/example_group.rb:141:in `subclass'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/example_group.rb:129:in `describe'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/dsl.rb:5:in `describe'
from /Users/thealey/Source/rpd31/spec/requests/create_projects_spec.rb:3:in `'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/configuration.rb:419:in `load'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/configuration.rb:419:in `block in load_spec_files'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/configuration.rb:419:in `map'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/configuration.rb:419:in `load_spec_files'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/command_line.rb:18:in `run'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/runner.rb:80:in `run_in_process'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/runner.rb:69:in `run'
from /Users/thealey/.rvm/gems/ruby-1.9.2-p290#rails31/gems/rspec-core-2.6.4/lib/rspec/core/runner.rb:11:in `block in autorun'
Gemfile is
source 'http://rubygems.org'
gem 'rails', '3.0.10'
gem 'mysql2', '0.2.7'
gem "authlogic"
gem 'activesupport', '3.0.10'
gem 'cancan'
gem 'will_paginate', "~> 3.0"
gem 'calendar_date_select', :git => 'http://github.com/paneq/calendar_date_select.git', :branch => 'rails3test'
gem 'bluecloth'
gem 'rdiscount'
gem 'capybara'
gem 'paperclip'
gem 'mail'
any ideas about how to troubleshoot this appreciated.
Edit: I removed commented out lines from Gemfile.
I put diff into my gemfile no change.
This is the output of bundle.
Using rake (0.9.2)
Using abstract (1.0.0)
Using activesupport (3.0.10)
Using builder (2.1.2)
Using i18n (0.5.0)
Using activemodel (3.0.10)
Using erubis (2.6.6)
Using rack (1.2.3)
Using rack-mount (0.6.14)
Using rack-test (0.5.7)
Using tzinfo (0.3.29)
Using actionpack (3.0.10)
Using mime-types (1.16)
Using polyglot (0.3.2)
Using treetop (1.4.10)
Using mail (2.2.19)
Using actionmailer (3.0.10)
Using arel (2.0.10)
Using activerecord (3.0.10)
Using activeresource (3.0.10)
Using addressable (2.2.6)
Using archive-tar-minitar (0.5.2)
Using authlogic (3.0.3)
Using crack (0.1.8)
Using httparty (0.7.8)
Using multipart-post (1.1.3)
Using faraday (0.7.4)
Using multi_json (1.0.3)
Using oauth2 (0.5.0)
Using bitly (0.6.1)
Using bluecloth (2.1.0)
Using bson (1.3.1)
Using bson_ext (1.3.1)
Using bundler (1.0.18)
Using calendar_date_select (1.16.1) from http://github.com/paneq/calendar_date_select.git (at rails3test)
Using cancan (1.6.5)
Using nokogiri (1.5.0)
Using ffi (1.0.9)
Using childprocess (0.2.2)
Using json_pure (1.6.0)
Using rubyzip (0.9.4)
Using selenium-webdriver (2.5.0)
Using xpath (0.1.4)
Using capybara (1.1.1)
Using chronic (0.6.4)
Using cocaine (0.2.0)
Using colored (1.2)
Using columnize (0.3.4)
Using daemons (1.1.4)
Using diff (0.3.6)
Using diff-lcs (1.1.3)
Using eventmachine (0.12.10)
Using factory_girl (2.1.0)
Using rdoc (3.9.4)
Using thor (0.14.6)
Using railties (3.0.10)
Using factory_girl_rails (1.2.0)
Using git_remote_branch (0.3.0)
Using googlecharts (1.6.7)
Using gravtastic (3.2.6)
Using guard (0.6.3)
Using guard-rspec (0.4.5)
Using htmldiff (0.0.1)
Using ruby_core_source (0.1.5)
Using linecache19 (0.5.12)
Using mysql2 (0.2.7)
Using net-ldap (0.2.2)
Using net-ping (1.5.0)
Using paperclip (2.4.1)
Using rails (3.0.10)
Using rdiscount (1.6.8)
Using ri_cal (0.8.8)
Using riddle (1.4.0)
Using rspec-core (2.6.4)
Using rspec-expectations (2.6.0)
Using rspec-mocks (2.6.0)
Using rspec (2.6.0)
Using rspec-rails (2.6.1)
Using ruby-debug-base19 (0.11.25)
Using ruby-debug19 (0.11.6)
Using seed_dump (0.3.4)
Using thin (1.2.11)
Using thinking-sphinx (2.0.1)
Using time_diff (0.2.1)
Using will_paginate (3.0.pre)
Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed.
I had the identical issue. In my case I had a model class called Diff (defined in diff.rb) which led to the issue. I've renamed my class/module and all is well now. I'm somewhat disappointed that this sort of namespace collision could occur.
Other users have also encountered issues with collisions originating from other gems (eg: https://github.com/sunaku/tork/issues/3). If I were troubleshooting the issue, I'd go to your gem directory (use bundle show for any one of your gems to find where they live) and run
find . -name diff.rb
That should tell you all of the libraries that contain a diff.rb file. I'd be looking for one of the more obscure/less actively maintained gems to be the culprit. You'll likely need to find an alternative gem (or contribute a fix the offending gem!) to fix the issue.

Error "uninitialized constant Rails::Engine (NameError)"

I am trying to join a Rails project. This project uses rails 2.3.8 and Ruby 1.8.7 so I am using RVM. I am also using gem v1.3.7
When I fire up the server, everything is ok. But then, when I try to access it through my browser, it crashes and I get the following trace:
/Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:440:in `load_missing_constant': uninitialized constant Rails::Engine (NameError)
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:80:in `const_missing'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/devise_invitable-0.3.6/lib/devise_invitable/rails.rb:2
from /Users/ca/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /Users/ca/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:156:in `require'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:521:in `new_constants_in'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:156:in `require'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/devise_invitable-0.3.6/lib/devise_invitable.rb:16
from /Users/ca/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /Users/ca/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:156:in `require'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:521:in `new_constants_in'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:156:in `require'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/rails-2.3.8/lib/rails/gem_dependency.rb:215:in `load'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/rails-2.3.8/lib/initializer.rb:307:in `load_gems'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/rails-2.3.8/lib/initializer.rb:307:in `each'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/rails-2.3.8/lib/initializer.rb:307:in `load_gems'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/rails-2.3.8/lib/initializer.rb:169:in `process'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/rails-2.3.8/lib/initializer.rb:113:in `send'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/rails-2.3.8/lib/initializer.rb:113:in `run'
from /Users/ca/Documents/Project/Sources/Project-test/config/environment.rb:9
from /Users/ca/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /Users/ca/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:156:in `require'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:521:in `new_constants_in'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:156:in `require'
from /Users/ca/.rvm/gems/ruby-1.8.7-p334/gems/rails-2.3.8/lib/commands/server.rb:84
from /Users/ca/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /Users/ca/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from ./script/server:3
Here are my installed gems:
actionmailer (2.3.8)
actionpack (2.3.8)
activemodel (3.0.5)
activerecord (2.3.8)
activeresource (2.3.8)
activesupport (3.0.5, 2.3.8)
addressable (2.2.4)
arel (2.0.9)
aws (2.4.4)
aws-s3 (0.6.2)
bcrypt-ruby (2.1.4)
builder (3.0.0, 2.1.2)
client_side_validations (2.9.9)
crack (0.1.8)
daemons (1.1.0)
dalli (1.0.2)
delayed_job (2.0.3)
devise (1.1.7)
devise_invitable (0.3.6)
faraday (0.5.7, 0.4.6)
fb_graph (1.5.3)
googlecharts (1.6.1)
http_connection (1.4.0)
httparty (0.7.4)
i18n (0.5.0)
json (1.5.1, 1.4.3)
mime-types (1.16)
multi_json (0.0.5)
multipart-post (1.1.0)
net-ldap (0.1.1)
nokogiri (1.4.4)
oa-basic (0.1.5)
oa-core (0.1.5)
oa-enterprise (0.1.5)
oa-oauth (0.1.5)
oa-openid (0.1.5)
oauth (0.4.4)
oauth2 (0.1.1, 0.0.13)
omniauth (0.1.5)
paperclip (2.3.8)
pyu-ruby-sasl (0.0.3.2)
rack (1.1.1)
rack-openid (1.1.2)
rails (2.3.8)
rake (0.8.7)
RedCloth (4.2.7)
rest-client (1.6.1)
ruby-openid (2.1.8)
ruby-openid-apps-discovery (1.2.0)
rubygems-update (1.3.7)
rubyntlm (0.1.1)
tzinfo (0.3.24)
uuidtools (2.1.2)
validates_timeliness (2.3.0)
validation_reflection (0.3.7)
validation_reflection-active_model (0.3.1)
warden (1.0.3)
will_paginate (2.3.15)
xml-simple (1.0.14)
Where does the problem come from?
Thank you very much for your help!
Your version of the DeviseInvitable is too new for Rails 2.3.
DeviseInvitable currently only support Rails 3, if you want to use it with Rails 2.3 you must install version 0.2.3
As is Devise 1.1
Support for Rails 2.3.x can be found by installing Devise 1.0.x from the v1.0 branch.
Run
gem uninstall devise devise_invitable
gem install devise --version 1.0.10
gem install devise_invitable --version 0.2.3

Rails 2.3.5 startup: remove_const cannot remove Object::NotSupported (NameError)

I assume I'm in gem dependency hell here, but if anyone can help I'd be much appreciated (Googling for "cannot remove Object::NotSupported" literally returned zero results).
I have a Rails 2.3.5 app and I get this stack trace on initialization:
usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:603:in `remove_const': cannot remove Object::NotSupported (NameError)
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:603:in `remove_constant'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:603:in `instance_eval'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:603:in `remove_constant'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:549:in `new_constants_in'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:549:in `each'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:549:in `new_constants_in'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:in `load'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:622:in `load_application_initializers'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:621:in `each'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:621:in `load_application_initializers'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:176:in `process'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:in `send'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:in `run'
from /data/groupsale/releases/20101214214330/config/environment.rb:9
from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/commands/server.rb:84
from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from script/server:3
I've gone through each of the config.gem lines, then started deleting initializers, until this error went away and I started seeing "real" errors (about the things I removed) but I haven't been able to pinpoint the offending one. Does anyone have (a) any advice on a better way to troubleshoot this, or (b) does Object::NotSupported ring any bells... it almost seems suspiciously generic.
Thanks,
Tom
P.S. Gem list as follows:
aaronh-chronic (0.3.9)
abstract (1.0.0)
actionmailer (2.3.5)
actionpack (2.3.5)
activerecord (2.3.5)
activeresource (2.3.5)
activesupport (3.0.1, 2.3.5)
aws (2.3.26)
aws-s3 (0.6.2)
barby (0.4.2)
bitly (0.5.3)
bson (1.1.4)
bson_ext (1.1.4)
builder (2.1.2)
crack (0.1.8)
devise (1.0.9)
erubis (2.6.2)
eventmachine (0.12.6)
exceptional (2.0.26)
extlib (0.9.9)
eyrubygems (0.0.2)
facebooker (1.0.75)
facter (1.5.2)
fastercsv (1.5.3)
fastthread (1.0.7)
ferret (0.11.6)
forgery (0.3.4)
formtastic (0.9.7)
hoe (2.8.0)
hominid (2.1.0)
http_connection (1.4.0)
httparty (0.6.1)
i18n (0.5.0)
igrigorik-em-http-request (0.1.5)
jnunemaker-validatable (1.8.4)
json (1.1.3)
json_pure (1.4.6)
mime-types (1.16)
mini_magick (2.3)
money (3.1.5)
mongo (1.1.4)
mongo_ext (0.19.3)
mongo_mapper (0.8.6)
navvy (0.3.1)
ohai (0.2.0)
open4 (0.9.6)
paginator (1.1.1)
passenger (2.2.8)
plucky (0.3.6)
rack (1.0.1)
rails (2.3.5)
rails-footnotes (3.6.7)
rake (0.8.7)
RedCloth (4.2.3)
rest-client (0.9.2)
right_aws (1.10.0)
right_http_connection (1.2.4)
rmagick (2.12.2)
ruby-hmac (0.4.0)
ruby-openid (2.1.2)
rubyforge (2.0.4)
rubygems-update (1.3.6)
sparklines (0.5.2)
stomp (1.0.6)
subexec (0.0.4)
uuidtools (2.1.1)
warden (1.0.2)
whenever (0.6.2)
xml-simple (1.0.12)
yui-compressor (0.9.1)
zendesk_remote_auth (0.9.0)
So, simplest way I found to debug this was to crack open /usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb and add a line to log which things it was loading. That way I was able to isolate the bad initializer.
The root cause of this problem was that in an initializer, it was trying to YAML::load a config file that wasn't present on the machine.
try removing erubis from your gemfile as well.
I am getting that same error "ERROR NameError: cannot remove Object::KEY" with Erubis 2.6.5
and without that gem, I'm getting an error inside the view, which I have a clear error with stacktrace popping up
hope this helps.

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