Cannot install eventmachine – Ubuntu January 2, 2015/in Ubuntu /by myrosTry this: sudo apt-get install build-essentials after that, you could be able to install gem: gem install eventmachine /media/2015/01/logo2.jpg 0 0 myros /media/2015/01/logo2.jpg myros2015-01-02 19:51:522020-12-26 01:52:08Cannot install eventmachine – Ubuntu