undefined method `exists?' for nil:NilClass when pod install

[qichunren]

caojinhua:ruby-china-ios caojinhua$ pod install
Updating spec repo `master'

• Pre-downloading: 'QBKOverlayMenuView'

Report

• When I pod install

Stack

   CocoaPods : 0.8.0
        Ruby : ruby 1.9.2p290 (2011-07-09 revision 32553) [x86_64-darwin11.2.0]
    RubyGems : 1.8.24
        Host : Mac OS X 10.7.2 (11C74)
       Xcode : 4.2.1 (4D502)
Ruby lib dir : /Users/caojinhua/.rvm/rubies/ruby-1.9.2-p290/lib
Repositories : master - https://github.com/CocoaPods/Specs.git @ 39bed179c4f7f1a66c1ee9703d05c62e54669704

Podfile

platform :ios
pod 'AFNetworking'
pod 'QBKOverlayMenuView', :git => "https://github.com/sendoa/QBKOverlayMenuView.git"

Error

undefined method `exists?' for nil:NilClass
/Users/caojinhua/.rvm/gems/ruby-1.9.2-p290/gems/cocoapods-0.8.0/lib/cocoapods/dependency.rb:140:in `specification_from_sandbox'
/Users/caojinhua/.rvm/gems/ruby-1.9.2-p290/gems/cocoapods-0.8.0/lib/cocoapods/resolver.rb:44:in `find_cached_set'
/Users/caojinhua/.rvm/gems/ruby-1.9.2-p290/gems/cocoapods-0.8.0/lib/cocoapods/resolver.rb:60:in `block in find_dependency_specs'
/Users/caojinhua/.rvm/gems/ruby-1.9.2-p290/gems/cocoapods-0.8.0/lib/cocoapods/resolver.rb:58:in `each'
/Users/caojinhua/.rvm/gems/ruby-1.9.2-p290/gems/cocoapods-0.8.0/lib/cocoapods/resolver.rb:58:in `find_dependency_specs'
/Users/caojinhua/.rvm/gems/ruby-1.9.2-p290/gems/cocoapods-0.8.0/lib/cocoapods/resolver.rb:25:in `block in resolve'
/Users/caojinhua/.rvm/gems/ruby-1.9.2-p290/gems/cocoapods-0.8.0/lib/cocoapods/resolver.rb:22:in `each'
/Users/caojinhua/.rvm/gems/ruby-1.9.2-p290/gems/cocoapods-0.8.0/lib/cocoapods/resolver.rb:22:in `resolve'
/Users/caojinhua/.rvm/gems/ruby-1.9.2-p290/gems/cocoapods-0.8.0/lib/cocoapods/installer.rb:172:in `specs_by_target'
/Users/caojinhua/.rvm/gems/ruby-1.9.2-p290/gems/cocoapods-0.8.0/lib/cocoapods/installer.rb:81:in `install!'
/Users/caojinhua/.rvm/gems/ruby-1.9.2-p290/gems/cocoapods-0.8.0/lib/cocoapods/command/install.rb:53:in `run'
/Users/caojinhua/.rvm/gems/ruby-1.9.2-p290/gems/cocoapods-0.8.0/lib/cocoapods/command.rb:71:in `run'
/Users/caojinhua/.rvm/gems/ruby-1.9.2-p290/gems/cocoapods-0.8.0/bin/pod:12:in `<top (required)>'
/Users/caojinhua/.rvm/gems/ruby-1.9.2-p290/bin/pod:23:in `load'
/Users/caojinhua/.rvm/gems/ruby-1.9.2-p290/bin/pod:23:in `<main>'

[siuying]

Why would you do

pod 'QBKOverlayMenuView', :git => "https://github.com/sendoa/QBKOverlayMenuView.git"

instead of simply

pod 'QBKOverlayMenuView'

[qichunren]

@siuying Becuase I want to use latest edge code.

[siuying]

No, I believe pods do not work that way. :git is used for repo contains a podspec in the root folder in their repo.

You must specify your own podspec, or adhoc include one similar to following:

platform :ios
pod 'AFNetworking'
pod do |s|
  s.name             =  "QBKOverlayMenuView"
  s.version          =  "0.0.1"
  s.summary          =  "UIView object that tries to mimic the behavior of the floating control used by Sparrow."
  s.description      =  "It's basically an UIView object that tries to mimic the behavior of the floating control used by http://sparrowmailapp.com/iphone.php. The control appears at the bottom right corner of the screen and it unfolds a menu whenever it's touched."
  s.homepage         =  "https://github.com/sendoa/QBKOverlayMenuView"
  s.license          =  'Permissive free software licence'
  s.author           =  { "Sendoa Portuondo" => "sendoa@gmail.com" }
  s.source           =  { :git => "https://github.com/sendoa/QBKOverlayMenuView.git", :commit => "4bc12661e781c5e1a5a568f72e2cf439ddb3a7ad" }
  s.platform         =  :ios, '5.0'
  s.source_files     =  'Source'
  s.resources        =  "Source/img/*.png"
  s.preserve_paths   =  "LEEME.md"
  s.framework        =  'CoreGraphics'
  s.requires_arc     =  true
end

[fabiopelosin]

The error that @qichunren encountered appears if cocoapods can't find the podspec.

See #338

[fabiopelosin]

Btw, @siuying comment is the best way to use the latest edge, for now.

[qichunren]

@irrationalfab Could you think about the convenient way to use the latest edge? Just like ruby Bundler.

[siuying]

@irrationalfab if we could override/extend existing versioned pod then it would be great.

[fabiopelosin]

See my current proposal in #392.

@irrationalfab Could you think about the convenient way to use the latest edge? Just like ruby Bundler.

CocoaPods already works like Bundler the difference is that the majority of the projects don't have the podspec in their repo.