使用cocoapods出现某些错误

在更新cocoapods时，出现错误，找了半天终于在stackoverflow上找到答案：

/Users/myusername/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:298:in`to_specs': Could not find 'cocoa pods' (>= 0) among 37 total gem(s) (Gem::LoadErrorfrom

/Users/quique123/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:309:in `to_spec'from

/Users/quique123/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_gem.rb:53:in `gemfrom

/Users/quique123/.rvm/rubies/ruby-1.9.3-p194/bin/pod:22:in`'

答案：

Do not usesudo gem install cocoapodsif you havervminstalled. It creates a few problems. Follow these steps to fix your cocoapods installation:

Uninstall Cocoapods:

sudo gem uninstall cocoapods

Make sure you're on the latest Ruby:

which ruby

Installcocoapodswithoutsudo:

gem install cocoapods-V--no-ri--no-rdoc# V: Verbose; no-ri,no-rdoc: Do not install documentation

Set up Cocoapods:

pod setup

Should work now.

原来是我以前安装是用了sudo，导致位置不对

重新设置一下就行了。