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Cannot install rubygem rcov

Trying to install the rubygem rcov in ubuntu intrepid. I need this particular gem for a autoscript for amazon ec2 services. However I get an error whenever I try to install the gem via gem install rcov

This worked just last week, when I installed it for another machine, and now cannot find the gem?

gem install rcov
Building native extensions.  This could take a while...
ERROR:  Error installing rcov:
        ERROR: Failed to build gem native extension.
 
/usr/bin/ruby1.8 extconf.rb install rcov
extconf.rb:1:in `require': no such file to load -- mkmf (LoadError)
        from extconf.rb:1
 
 
Gem files will remain installed in /var/lib/gems/1.8/gems/rcov-0.8.1.2.0 for inspection.
Results logged to /var/lib/gems/1.8/gems/rcov-0.8.1.2.0/ext/rcovrt/gem_make.out
 
and opening the file produces this.
 
/usr/bin/ruby1.8 extconf.rb install rcov
extconf.rb:1:in `require': no such file to load -- mkmf (LoadError)
        from extconf.rb:1
 
What does this mean?

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Fabio Marzocca

did you correctly send the command with root privilegies?

sudo gem install rcov

Illyankesh

ASKER

Yes, i was logged in as root. and all the other gems installed just fine.

ASKER CERTIFIED SOLUTION

Fabio Marzocca

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Illyankesh

ASKER

Thanks alot man, that was super fast response time. Saved my bacon. Cheers.