ERROR: While executing gem ... (Gem::Installer::ExtensionBu

Ruby Apps Ferret
1

Hi all,

Sorry if this is answered somewhere – I am new to ruby and to linux,
and can’t figure it out:

When I try to install ferret (see below), I get ERROR: While executing
gem … (Gem::Installer::ExtensionBuildError). Same thing happens for
any version I pick from th list.

I am using:
gcc (GCC) 4.1.2 (Ubuntu 4.1.2-0ubuntu4)
ruby 1.8.5 (2006-08-25) [i486-linux]
gem 0.9.4

No idea how to fix this – please help!

Thanks,

Geth

========================================================

gethryn@gethryn-desktop:~/rails_space$ sudo gem install ferret
Password:
Select which gem to install for your platform (i486-linux)

  1. ferret 0.11.4 (ruby)
  2. ferret 0.11.4 (mswin32)
  3. ferret 0.11.3 (ruby)
  4. ferret 0.11.2 (ruby)
  5. Skip this gem
  6. Cancel installation

1
Building native extensions. This could take a while…
ERROR: While executing gem … (Gem::Installer::ExtensionBuildError)
ERROR: Failed to build gem native extension.

ruby extconf.rb install ferret
extconf.rb:11:in `require’: no such file to load – mkmf (LoadError)
from extconf.rb:11

Gem files will remain installed in
/usr/lib/ruby/gems/1.8/gems/ferret-0.11.4 for inspection.
Results logged to
/usr/lib/ruby/gems/1.8/gems/ferret-0.11.4/ext/gem_make.out
gethryn@gethryn-desktop:~/rails_space$

2

ruby extconf.rb install ferret
extconf.rb:11:in `require’: no such file to load – mkmf (LoadError)
from extconf.rb:11

Geth,

i would assume, your ruby setup is broken. at least for root.
are you able to compile other extension or install other
gems? mkmf is a basic library of ruby, i’ve got it automatically
installed by ruby at

/usr/lib/ruby/1.8/mkmf.rb

are you able to open a irb session and require mkmf
manually? did you check, if that file exists in your ruby
1.8 folder? maybe you should reinstall ruby.

and did you check the log file?

/usr/lib/ruby/gems/1.8/gems/ferret-0.11.4/ext/gem_make.out

Ben

3

On Tue, Aug 28, 2007 at 09:45:28AM +0200, Benjamin K. wrote:

/usr/lib/ruby/1.8/mkmf.rb

he’s on Ubuntu, which inherited the nice feature of having Ruby split up
in several packages from Debian :frowning:

mkmf is part of ruby1.8-dev.

Jens

–
Jens Krämer
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4

Jens K. wrote:

he’s on Ubuntu, which inherited the nice feature of having Ruby split up
in several packages from Debian :frowning:

mkmf is part of ruby1.8-dev.

A THOUSAND THANK YOUS! I can finish the book I am learning from now!

“Successfully installed ferret-0.11.4”

worked perfectly after I ran:

$ sudo apt-get install ruby1.8-dev

Thanks again,

Geth

5

Thanks a lot.

You saved my time

Benjamin K. wrote:

ruby extconf.rb install ferret
extconf.rb:11:in `require’: no such file to load – mkmf (LoadError)
from extconf.rb:11

Geth,

i would assume, your ruby setup is broken. at least for root.
are you able to compile other extension or install other
gems? mkmf is a basic library of ruby, i’ve got it automatically
installed by ruby at

/usr/lib/ruby/1.8/mkmf.rb

are you able to open a irb session and require mkmf
manually? did you check, if that file exists in your ruby
1.8 folder? maybe you should reinstall ruby.

and did you check the log file?

/usr/lib/ruby/gems/1.8/gems/ferret-0.11.4/ext/gem_make.out

Ben