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I updated my xcode on 9.2 and then I created a project and installed pod on it. Pod installed successfully but the white file .xcodeproj is not created. Then I ran sudo gem uninstall cocoapods and then ran sudo gem install cocoapods --pre.

It showed this error: 

Could not find a valid gem 'cocoapods' (>= 0), here is why:
          Unable to download data from https://rubygems.org/ - SSL_connect returned=1 errno=0 state=SSLv2/v3 read server hello A: tlsv1 alert protocol version (https://rubygems.org/specs.4.8.gz)
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  • Try to clean gems sudo rm -rf /Library/Ruby/Gems/1.8 – Stefan Jul 05 '18 at 06:58
  • Whats the version of your installed cocoapods? Did you run `pod init` in your workspace? the .xcodeproj needs to be in the root of your workspace and cocoapods will create a `.xcworkspace` for you if your Podfile is setup proper – zero3nna Jul 05 '18 at 06:58
  • btw, gems should not be installed via sudo. `gem install cocoapods` should be sufficient – zero3nna Jul 05 '18 at 07:00

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