ERROR: Could not find a valid gem 'cocoapods' (>= 0) in any repository
<p>i am trying to run a AWS Cognito service project in which i have added the AWS SDK for iOS but after adding it and trying to run it it shows me the below shown error in the image</p>

<p><a href="http://i.stack.imgur.com/DJUDC.png" rel="noreferrer">ERROR:  Could not find a valid gem 'cocoapods' (>= 0) in any repository</a></p>

<p>when i crawl it on internet and found some cocoapods install instructions so after trying that i got some other error like below </p>

<pre><code>aparajita:Objective-C Aparajita$ sudo gem install cocoapods
Password:
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/universal-darwin14/rbconfig.rb:213: warning: Insecure world writable dir /usr/local in PATH, mode 040777
ERROR:  Could not find a valid gem 'cocoapods' (&gt;= 0) in any repository
aparajita:Objective-C Aparajita$ gem install cocoapods
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/universal-darwin14/rbconfig.rb:213: warning: Insecure world writable dir /usr/local in PATH, mode 040777
ERROR:  Could not find a valid gem 'cocoapods' (&gt;= 0) in any repository
aparajita:Objective-C Aparajita$ gem source -a http://rubygems.org/
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/universal-darwin14/rbconfig.rb:213: warning: Insecure world writable dir /usr/local in PATH, mode 040777
https://rubygems.org is recommended for security over http://rubygems.org/

Do you want to add this insecure source? [yn]  y
Error fetching http://rubygems.org/:
no such name (http://rubygems.org/specs.4.8.gz)
aparajita:Objective-C Aparajita$ gem source -a rubygems.org
 /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/universal-darwin14/rbconfig.rb:213: warning: Insecure world writable dir /usr/local in PATH, mode 040777
rubygems.org is not a URI
aparajita:Objective-C Aparajita$ gem source -r rubygems.org
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/universal-darwin14/rbconfig.rb:213: warning: Insecure world writable dir /usr/local in PATH, mode 040777
source rubygems.org not present in cache
</code></pre>

<p>i have tried it all but still above log i got from the console . if any one have any solution on this please let me know, thanks</p>