Travis reports odd message of corrupted Gemfile.lock

Question

Im using bundler to install stuff and since I have added Gemfile.lock, travis started to complain with:

Your Gemfile.lock is corrupt. The following gem is missing from the DEPENDENCIES
section: 'echoe'

Of course, everything works locally. It also works using DeployBot. I even installed docker ubuntu and tried, still ok. My Gemfile.lock is not corrupt. Same versions of ruby and bundler is used.

What is going on?

Update

This is something related to bundler version. Im using 1.11.0, but got reports that it worked with eg. 1.8.3. ??

Answer 1

We've seen a very similar issue today on Buildkite due to the recent release of a new bundler version https://rubygems.org/gems/bundler/versions/1.11.0

We got the build working by stipulating the version of bundler to install.

gem install -v 1.10.6 bundler --no-rdoc --no-ri

and forcing the use of that

bundle _1.10.6_ install

Answer 2

Firstly, remove the gem lock file:

rm -f Gemfile.lock

Then install the dependencies:

bundle install

You can update the dependencies to ensure that you won't get an error:

bundle update