Gem installed but "its extensions are not built"

Build Environment
1

I have a weird issue. The bundle install works fine but none of the extensions are installed.

I enabled ssh for the build box and while I’m on there, I can see the following:

ubuntu@box392:~/www.clockwisemd.com$ bundle
Using i18n 0.7.0
/snip/
Bundle complete! 6 Gemfile dependencies, 74 gems now installed.
Bundled gems are installed into ./vendor/bundle.

But it errors out on the bundle exec command that should work. (It’s a jekyll site that’s trying to be built.

ubuntu@box392:~/www.clockwisemd.com$ bundle exec jekyll build
Configuration file: /home/ubuntu/www.clockwisemd.com/_config.yml
  Dependency Error: Yikes! It looks like you don't have jekyll-mentions or one of its dependencies installed. In order to use Jekyll as currently configured, you'll need to install this gem. The full error message from Ruby is: 'libruby.so.2.3: cannot open shared object file: No such file or directory - /home/ubuntu/www.clockwisemd.com/vendor/bundle/ruby/2.3.0/gems/nokogiri-1.6.8/lib/nokogiri/nokogiri.so' If you run into trouble, you can find helpful resources at http://jekyllrb.com/help/!
jekyll 3.2.1 | Error:  jekyll-mentions

irb tells me the problem clearly:

ubuntu@box392:~/www.clockwisemd.com$ bundle exec irb
Ignoring ffi-1.9.14 because its extensions are not built.  Try: gem pristine ffi --version 1.9.14
Ignoring nokogiri-1.6.8 because its extensions are not built.  Try: gem pristine nokogiri --version 1.6.8
Ignoring therubyracer-0.12.2 because its extensions are not built.  Try: gem pristine therubyracer --version 0.12.2

So I try to install all three:

ubuntu@box392:~/www.clockwisemd.com$ gem install nokogiri --version 1.6.8
Fetching: mini_portile2-2.1.0.gem (100%)
Successfully installed mini_portile2-2.1.0
Fetching: pkg-config-1.1.7.gem (100%)
Successfully installed pkg-config-1.1.7
Fetching: nokogiri-1.6.8.gem (100%)
Building native extensions.  This could take a while...
Successfully installed nokogiri-1.6.8
3 gems installed

Still no dice.

What am I missing?

Background info:

  • Tried both Ubuntu 12.04 (Precise) and Ubuntu 14.04 (Trusty)
  • “Open source” project but we have a paid account - not sure that matters.
  • pasted contents of stuff below
$ cat circle.yml
test:
  override:
    - bundle exec jekyll build

deployment:
  production:
    branch: master
    commands:
      - s3_website push

$ cat .ruby-version
ruby-2.3.1

$ bundle check
The Gemfile's dependencies are satisfied

$ bundle console
/home/ubuntu/www.clockwisemd.com/vendor/bundle/ruby/2.3.0/gems/therubyracer-0.12.2/lib/v8.rb:4:in `require': libruby.so.2.3: cannot open shared object file: No such file or directory - /home/ubuntu/www.clockwisemd.com/vendor/bundle/ruby/2.3.0/gems/therubyracer-0.12.2/lib/v8/init.so (LoadError)
	from /home/ubuntu/www.clockwisemd.com/vendor/bundle/ruby/2.3.0/gems/therubyracer-0.12.2/lib/v8.rb:4:in `<top (required)>'
	from /home/ubuntu/www.clockwisemd.com/vendor/bundle/ruby/2.3.0/gems/therubyracer-0.12.2/lib/therubyracer.rb:1:in `require'
	from /home/ubuntu/www.clockwisemd.com/vendor/bundle/ruby/2.3.0/gems/therubyracer-0.12.2/lib/therubyracer.rb:1:in `<top (required)>'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/lib/bundler/runtime.rb:86:in `require'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/lib/bundler/runtime.rb:86:in `block (2 levels) in require'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/lib/bundler/runtime.rb:81:in `each'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/lib/bundler/runtime.rb:81:in `block in require'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/lib/bundler/runtime.rb:70:in `each'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/lib/bundler/runtime.rb:70:in `require'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/lib/bundler.rb:102:in `require'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/lib/bundler/cli/console.rb:11:in `run'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/lib/bundler/cli.rb:333:in `console'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/lib/bundler/vendor/thor/lib/thor/invocation.rb:126:in `invoke_command'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/lib/bundler/vendor/thor/lib/thor.rb:359:in `dispatch'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/lib/bundler/vendor/thor/lib/thor/base.rb:440:in `start'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/lib/bundler/cli.rb:11:in `start'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/exe/bundle:27:in `block in <top (required)>'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/lib/bundler/friendly_errors.rb:98:in `with_friendly_errors'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/gems/bundler-1.12.5/exe/bundle:19:in `<top (required)>'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/bin/bundle:23:in `load'
	from /opt/circleci/.rvm/gems/ruby-2.3.1/bin/bundle:23:in `<main>'
1 Like
2

I just encountered this same error when switching from one container (Ubuntu 12.04) to another (Ubuntu 14.04). I triggered a rebuild without cache, and all the gems were reinstalled successfully and the build succeeded. After one success without cache, subsequent builds also succeeded, but when I switched containers I did have to rebuilt without cache again.

I believe that switching the container led to the situation where bundler thought the gems were installed, but OS-level dependencies they had were not (bundler has no direct knowledge of these). Rebuilding without cache forced all the gems to reinstall, which installed their dependencies at that time.

2 Likes
3

We are seeing this approximately once or twice a day since around two weeks ago, especially on feature branches. We haven’t changes our Ruby version or CircleCI config recently. Rebuilding without cache fixes it. Very annoying.

4

This post saved me a lot of time. Thanks!

5

Having the same problem here. Did you ever find a solution to not have to keep sporadically clicking “rebuild without cache”?

1 Like
6

I now have this issue with 100% of builds. Need to rebuild without cache for it to work.

LoadError: libruby.so.2.4: cannot open shared object file: No such file or directory - /home/ubuntu/sigrid/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.7.1/lib/nokogiri/nokogiri.so