Ruby gem installation error after OSX Yosemite and Xcode 6 installation

Question

I tried installing a gem like I did before installing Yosemite, but now I\'m getting an error:

/Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:159:in `synchronize\': E

Answer 1

I had the same issue. Downgrading to ruby 1.9.3 with RVM fixed the issue for me on 10.10 Yosemite - here are the steps taken:

$ \curl -sSL https://get.rvm.io | bash
$ source /Users/shedali/.rvm/scripts/rvm
$ rvm install 1.9.3 --with-gcc=clang
$ gem install [packagename]