Can't get to work CocoaPods and Yosemite

Question

I already tried this steps:

1. Open Xcode 6 Open Preferences
2. Click the Locations tab
3. Change the Command Line Tools version to Xcode 6.0

Answer 1

I had to uninstall the entire dependency chain for cocoapods to get it to work.

for i in `gem list --no-versions`; do gem uninstall -aIx $i; done

see Uninstall all installed gems, in OSX?