Hello everybody !
I just tried to install the “neuro”-gem. But the install process fails
with an exception:
C:\Windows\system32>gem install neuro -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 neuro -y
E:/Ruby/lib/ruby/1.8/mkmf.rb:1102: warning: global variable `$preload’
The command “nmake” couldn’t be found.
Gem files will remain installed in
E:/Ruby/lib/ruby/gems/1.8/gems/neuro-0.4.0 for inspection.
Results logged to
Has anybody why this error occurs and how to solve it ???
Or are there other neuro-network / backpropagation extensions ?