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#3865 ✓invalid

"Invalid .gemspec format in" and "already initialized constant" warnings with Ruby 1.9.2dev

Reported by trevor | February 5th, 2010 @ 08:21 PM | in 3.0.2

% ruby -v
ruby 1.9.2dev (2010-02-03 trunk 26544) [x86_64-darwin10.2.0]

% rails -v
Rails 3.0.0.beta

seeing a lot of warnings along the lines -

WARNING:  #<NoMethodError: undefined method '>' for nil:NilClass>
WARNING:  Invalid .gemspec format in '/usr/local/lib/ruby/gems/1.9.1/specifications/warden-0.9.0.gemspec'
WARNING:  #<NoMethodError: undefined method '>' for nil:NilClass>
WARNING:  Invalid .gemspec format in '/usr/local/lib/ruby/gems/1.9.1/specifications/xml-simple-1.0.12.gemspec'


/usr/local/lib/ruby/site_ruby/1.9.1/rubygems.rb:14: warning: already initialized constant VERSION
/usr/local/lib/ruby/site_ruby/1.9.1/rubygems.rb:14: warning: already initialized constant RubyGemsVersion
/usr/local/lib/ruby/site_ruby/1.9.1/rubygems.rb:194: warning: already initialized constant MUTEX
/usr/local/lib/ruby/site_ruby/1.9.1/rubygems.rb:196: warning: already initialized constant RubyGemsPackageVersion
/usr/local/lib/ruby/site_ruby/1.9.1/rubygems.rb:202: warning: already initialized constant WIN_PATTERNS

whenever starting rails with rails server or rails console

Comments and changes to this ticket

  • Jeremy Kemper

    Jeremy Kemper February 5th, 2010 @ 08:38 PM

    • Milestone cleared.
    • State changed from “new” to “invalid”

    This is a RubyGems issue. Ruby 1.9 ships with an outdated RubyGems and you can't upgrade it.

    Fortunately, you can ignore the warnings.

  • matt (at toastyapps)

    matt (at toastyapps) February 8th, 2010 @ 01:25 AM

    • Assigned user set to “Jeremy Kemper”

    ruby -v
    ruby 1.9.1p378 (2010-01-10 revision 26273) [i386-darwin10.2.0]

    gem -v

    I am having a similar issue where running "rails -v" (inside of a rails project only) or running script/rails results in a lot of "WARNING: Invalid .gemspec format" for example:

    WARNING: #<NoMethodError: undefined method >' for nil:NilClass><br/>

    -- encoding: utf-8 -- do |s| = %q{abstract} s.version = "1.0.0"

    s.required_rubygems_version = nil if s.respond_to? :required_rubygems_version= s.authors = ["makoto kuwata"] s.cert_chain = nil = %q{2006-03-12} s.description = %q{'abstract.rb' is a library which enable you to define abstract method in Ruby.} s.files = ["lib/abstract.rb", "test/test.rb", "README.txt", "ChangeLog", "setup.rb", "abstract.gemspec"] s.homepage = %q{} s.require_paths = ["lib"] s.required_ruby_version ="> 0.0.0") s.rubygems_version = %q{1.3.5} s.summary = %q{a library which enable you to define abstract method in Ruby} s.test_files = ["test/test.rb"]

    if s.respond_to? :specification_version then

    current_version = Gem::Specification::CURRENT_SPECIFICATION_VERSION
    s.specification_version = 1
    if >='1.2.0') then

    else end end
    WARNING: Invalid .gemspec format in '/usr/local/Cellar/ruby/1.9.1-p378/lib/ruby/gems/1.9.1/specifications/abstract-1.0.0.gemspec'

    This is followed by a couple thousand lines of output and whereas I can ignore them, it's still very annoying.

  • RomD
  • Balazs Nagy

    Balazs Nagy February 8th, 2010 @ 04:31 PM

    Please also have a look on

    This is a ruby 1.9 issue with an easy fix, but we wanted to treat it in other places.

  • trevor

    trevor February 8th, 2010 @ 10:37 PM

    as pointed out by Balazs Nagy the "warning: already initialized constant" comes from Ruby cruft. removing the old library directory and starting with a fresh install removes those warnings.

    note, this does not fix the verbose "Invalid .gemspec format in" warnings.

    here's approximately what I did on OS X (snow leopard).

    gem list --no-version > gem_list.txt
    sudo mv /usr/local/lib/ruby /usr/local/lib/ruby-old
    # install
    sudo su
    gem install tzinfo builder memcache-client rack rack-test rack-mount erubis mail text-format thor bundler i18n
    gem install rails --pre
    gem install sqlite3-ruby
    env ARCHFLAGS="-arch x86_64" gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config
    # install remaining gems
  • Christian Lupp

    Christian Lupp February 11th, 2010 @ 10:14 PM

    The new bundler version 0.9.4 solves the first "Invalid .gemspec format" problem.

    The second RubyGems problem can be solved by a simple

    sudo gem uninstall rubygems-update
  • trevor

    trevor February 11th, 2010 @ 10:23 PM

    i'll confirm what Christian said in regards to the "Invalid .gemspec format" problem being solved for rails server and rails console

    % git show-ref refs/heads/master
    4d8a76f3013e3347e55ddb319d76f9602f4bbccb refs/heads/master
    % sudo gem uninstall bundler
    Successfully uninstalled bundler-0.9.5
    % sudo rake install
    WARNING:  Invalid .gemspec format in '/usr/local/lib/ruby/gems/1.9.1/specifications/tzinfo-0.3.16.gemspec'
    WARNING:  #' for nil:NilClass>
    [... blah blah gemspec warnings ...]
    Successfully installed bundler-0.9.5
    % cd /tmp
    % ruby -v
    ruby 1.9.2dev (2010-02-03 trunk 26544) [x86_64-darwin10.2.0]
    % rails -v
    Rails 3.0.0.beta
    % rails myapp
    % cd myapp
    % rc
    Loading development environment (Rails 3.0.0.beta)
    irb(main):001:0> exit
    % rs
    => Booting WEBrick
    => Rails 3.0.0.beta application starting in development on
  • Jeremy Kemper

    Jeremy Kemper October 15th, 2010 @ 11:01 PM

    • Milestone set to 3.0.2
    • Importance changed from “” to “Low”

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