Ruby on Rails: Problems debuggin an app - ruby-on-rails

Question

I am having problems in order to debug an app using ruby-debug with RadRails.
I try to install the gem with gem install ruby-debug19 -as I am using Ruby 1.9.1-p249 but I get the following error:
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:>gem install ruby-debug19
Building native extensions. This could take a while...
ERROR: Error installing ruby-debug19:
ERROR: Failed to build gem native extension.
C:/Ruby191/bin/ruby.exe extconf.rb
checking for vm_core.h... * extconf.rb failed *
Could not create Makefile due to some reason, probably 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:/Ruby191/bin/ruby
--with-ruby-dir
--without-ruby-dir
--with-ruby-include
--without-ruby-include=${ruby-dir}/include
--with-ruby-lib
--without-ruby-lib=${ruby-dir}/lib
C:/Ruby191/lib/ruby/1.9.1/mkmf.rb:364:in try_do': The complier failed
to genera
te an executable file. (RuntimeError)
You have to install development tools first.
from C:/Ruby191/lib/ruby/1.9.1/mkmf.rb:433:intry_cpp'
from C:/Ruby191/lib/ruby/1.9.1/mkmf.rb:811:in block in
have_header'
from C:/Ruby191/lib/ruby/1.9.1/mkmf.rb:670:inblock in
checking_for'
from C:/Ruby191/lib/ruby/1.9.1/mkmf.rb:276:in block (2 levels)
in postp
one'
from C:/Ruby191/lib/ruby/1.9.1/mkmf.rb:250:inopen'
from C:/Ruby191/lib/ruby/1.9.1/mkmf.rb:276:in block in
postpone'
from C:/Ruby191/lib/ruby/1.9.1/mkmf.rb:250:inopen'
from C:/Ruby191/lib/ruby/1.9.1/mkmf.rb:272:in postpone'
from C:/Ruby191/lib/ruby/1.9.1/mkmf.rb:669:inchecking_for'
from C:/Ruby191/lib/ruby/1.9.1/mkmf.rb:810:in have_header'
from extconf.rb:15:inblock in '
from
C:/Ruby191/lib/ruby/gems/1.9.1/gems/ruby_core_source-0.1.4/lib/ruby
_core_source.rb:18:in call'
from
C:/Ruby191/lib/ruby/gems/1.9.1/gems/ruby_core_source-0.1.4/lib/ruby
_core_source.rb:18:increate_makefile_with_core'
from extconf.rb:20:in `'
Gem files will remain installed in
C:/Ruby191/lib/ruby/gems/1.9.1/gems/linecache
19-0.5.11 for inspection.
Results logged to
C:/Ruby191/lib/ruby/gems/1.9.1/gems/linecache19-0.5.11/ext/tra
ce_nums/gem_make.out
C:>
Thanks in advance!

Answer 1

Just guessing... it didn't find vm_core.h, so you have to set that path using -I<path>.
If I may suggest you something for less pain, use Virtualbox + ubuntu + rvm.

Answer 2

Just installed RubyInstaller 1.9.2 and worked