cannot load such file — readline (LoadError) when running heroku create --stack cedar

Question

I\'m trying to deploy my Rails application to Heroku to test it out by following these instructions:

http://devcenter.heroku.com/articles/rails3#prerequisites

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Answer 1

If you happen to be using rbenv on Ubuntu

sudo apt-get install libreadline-dev
CONFIGURE_OPTS="--with-readline-dir=/usr/include/readline" rbenv install 1.9.3-p125

as written up at http://vvv.tobiassjosten.net/ruby/readline-in-ruby-with-rbenv/