After installing Ruby, i tried installing Rails and this is the error
i got:
C:\Users\Eunice>gem install rails
Building native extensions. This could take a while...
ERROR: Error installing rails:
ERROR: Failed to build gem native extension.
C:/Ruby/bin/ruby.exe extconf.rb
checking for re.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, problably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=C:/Ruby/bin/ruby
C:/Ruby/lib/ruby/1.9.1/mkmf.rb:368:in 'try_do': The complier failed to
generate an executable file. <RuntimeError>
You have to install development tools first.
from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:452:in 'try_cpp'
from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:834:in 'block in
have_header'
from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:693:in `block in
checking_for'
from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:280:in `block (2 levels) in
postpone'
from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:254:in `open'
from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:280:in `block in postpone'
from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:254:in `open'
from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:276:in `postpone'
from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:692:in `checking_for'
from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:833:in `have_header'
from extconf.rb:14:in `<main>'
Gem files will remain installed in C:/Ruby/lib/ruby/gems/1.9.1/gems/
json-1.6.1 for inspection.
Results logged to C:/Ruby/lib/ruby/gems/1.9.1/gems/json-1.6.1/ext/json/
ext/parser/gem_make.out
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