Thanks Tammo for the reply. After adding the gem-lines to the Gemfile I was able to build it successfully.
However using a previous version didn't work. Earlier I tried to use the version 1.4.4 which is the minimum requirement mentioned in the web site, but it didn't work. It gave me the bellow error. /var/lib/gems/1.9.1/gems/rake-0.8.7/lib/rake/alt_system.rb:32: Use RbConfig instead of obsolete and deprecated Config. /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- rubygems/source_info_cache (LoadError) from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require' from /var/lib/gems/1.9.1/gems/buildr-1.4.4/lib/buildr/core/application.rb:41:in `<top (required)>' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require' from /var/lib/gems/1.9.1/gems/buildr-1.4.4/lib/buildr/core.rb:17:in `<top (required)>' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require' from /var/lib/gems/1.9.1/gems/buildr-1.4.4/lib/buildr.rb:20:in `<top (required)>' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require' from /var/lib/gems/1.9.1/gems/buildr-1.4.4/bin/buildr:18:in `<top (required)>' from /usr/local/bin/buildr:23:in `load' from /usr/local/bin/buildr:23:in `<main>' Now I tried to use the version 1.4.21 and it also didn't work. This is the error I got. /var/lib/gems/1.9.1/gems/bundler-1.8.5/lib/bundler/runtime.rb:34:in `block in setup': You have already activated buildr 1.4.21, but your Gemfile requires buildr 1.4.22. Prepending `bundle exec` to your command may solve this. (Gem::LoadError) from /var/lib/gems/1.9.1/gems/bundler-1.8.5/lib/bundler/runtime.rb:19:in `setup' from /var/lib/gems/1.9.1/gems/bundler-1.8.5/lib/bundler.rb:122:in `setup' from /var/lib/gems/1.9.1/gems/bundler-1.8.5/lib/bundler/setup.rb:8:in `<top (required)>' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require' from /var/lib/gems/1.9.1/gems/buildr-1.4.21/bin/buildr:18:in `<top (required)>' from /usr/local/bin/buildr:23:in `load' from /usr/local/bin/buildr:23:in `<main>' Regards, Maduranga On Mon, Mar 16, 2015 at 9:50 PM, Tammo van Lessen <tvanles...@gmail.com> wrote: > Hi Maduranga, > > this is due to a very recent change in the new version of buildr. Either > uninstall this version and install 1.4.21 or add these gem-lines to Gemfile > and run "bundle install" before running buildr again. > > Please let me know if this didn't help. > > Best, > Tammo > > On Mon, Mar 16, 2015 at 2:27 PM, Maduranga Siriwardena < > maduranga.siriward...@gmail.com> wrote: > > > Hi all, > > > > I cloned the ODE code base from [1] and tried to build. My > > > > - buildr version = 1.4.22 > > - ruby version = 1.9.3p484 (2013-11-22 revision 43786) > > - java version = 1.7.0_76 > > > > But I get the bellow error. > > > > Buildr aborted! > > RuntimeError : check() method invoked in buildfile but RSpec has not been > > loaded. > > > > Buildr prior to version 1.4.22, included rspec as a dependency but as > > of version 1.4.22, it is expected users manually add RSpec to their > > Gemfile. The following lines should be added to restore the version > > of rspec included in 1.4.22: > > > > gem 'rspec-expectations', '= 2.14.3' > > gem 'rspec-mocks', '= 2.14.3' > > gem 'rspec-core', '= 2.14.5' > > gem 'rspec', '= 2.14.1' > > > > /home/maduranga/gsoc/ode_github/ode/Rakefile:680:in `block (2 levels) in > > distro' > > /home/maduranga/gsoc/ode_github/ode/Rakefile:648:in `tap' > > /home/maduranga/gsoc/ode_github/ode/Rakefile:648:in `block in distro' > > > > > > [1] https://github.com/apache/ode > > > > -- > > Maduranga Siriwardena > > Undergraduate > > Department of Computer Science and Engineering > > Faculty of Engineering, University of Moratuwa. > > > > > > -- > Tammo van Lessen - http://www.taval.de > -- Maduranga Siriwardena Undergraduate Department of Computer Science and Engineering Faculty of Engineering, University of Moratuwa.