Ruby 1.9.1 Require Cannot Load Such Fiie

Last modified: 
Friday, April 10th, 2015


Running gem install [whatever] returns an error along the lines of

/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- mkmf (LoadError)

Possible Solution

Install Ruby 1.9.1-dev...

sudo apt-get install ruby1.9.1-dev

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