Forum: Ruby gem install ruby-serialport gives error

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Sangeeta H. (Guest)
on 2009-02-17 08:06
:::: gem install ruby-serialport
Install required dependency echoe? [Yn]  Y
Install required dependency rubyforge? [Yn]  Y
Install required dependency highline? [Yn]  Y
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 ruby-serialport -p
http://proxyin03.itg.ti.com:80
checking for OS... mswin
creating Makefile

nmake
'nmake' is not recognized as an internal or external command,
operable program or batch file.


Gem files will remain installed in
c:/ruby/lib/ruby/gems/1.8/gems/ruby-serialpor
t-0.7.0 for inspection.
Results logged to
c:/ruby/lib/ruby/gems/1.8/gems/ruby-serialport-0.7.0/ext/gem_m
ake.out


i m facing this problem can anyone help me ??
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