I have a problem configuring my app to user wercker. My wercker.yml looks like this:
box: ruby
services:
- postgres
build:
steps:
- script:
name: Nokogiri fix
code: bundle config build.nokogiri --use-system-libraries
- bundle-install
- rails-database-yml
- script:
name: Set up db
code: bundle exec rake db:schema:load RAILS_ENV=test
- script:
name: rspec
code: bundle exec rspec
When I run build it fails with the following error:
rake aborted!
Bundler::GemRequireError: There was an error while trying to load the gem 'uglifier'.
/pipeline/source/config/application.rb:7:in `<top (required)>'
/pipeline/source/Rakefile:4:in `require'
/pipeline/source/Rakefile:4:in `<top (required)>'
ExecJS::RuntimeUnavailable: Could not find a JavaScript runtime. See https://github.com/rails/execjs for a list of available runtimes.
/pipeline/cache/bundle-install/ruby/2.3.0/gems/execjs-2.6.0/lib/execjs/runtimes.rb:48:in `autodetect'
/pipeline/cache/bundle-install/ruby/2.3.0/gems/execjs-2.6.0/lib/execjs.rb:5:in `<module:ExecJS>'
/pipeline/cache/bundle-install/ruby/2.3.0/gems/execjs-2.6.0/lib/execjs.rb:4:in `<top (required)>'
/pipeline/cache/bundle-install/ruby/2.3.0/gems/uglifier-2.7.2/lib/uglifier.rb:3:in `require'
/pipeline/cache/bundle-install/ruby/2.3.0/gems/uglifier-2.7.2/lib/uglifier.rb:3:in `<top (required)>'
/pipeline/source/config/application.rb:7:in `<top (required)>'
/pipeline/source/Rakefile:4:in `require'
/pipeline/source/Rakefile:4:in `<top (required)>'
(See full trace by running task with --trace
I think that I need to install nodejs on wercker but the question is how can I do this?