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boscomonkey/gem install heroku error 1

Created April 29, 2009 18:28
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command line error when installing Heroku gem
Raw
gem install heroku error 1
Building native extensions. This could take a while...
ERROR: Error installing heroku:
ERROR: Failed to build gem native extension.
/usr/bin/ruby1.8 extconf.rb
extconf.rb:1:in `require': no such file to load -- mkmf (LoadError)
from extconf.rb:1
Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/json-1.1.4 for inspection.
Results logged to /usr/lib/ruby/gems/1.8/gems/json-1.1.4/ext/json/ext/parser/gem_make.out
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