title: how to resolve error on circleci "bash: line 1: bundle: command not found"
body: <p>My tests were all passing yesterday on circle and are still passing today locally but now I this error message. Whats going on?</p>
  
  <pre><code>bundle check --path=vendor/bundle || bundle install --path=vendor/bundle --jobs=4 --retry=3 
  bash: line 1: bundle: command not found
  bash: line 1: bundle: command not found
  
  bundle check --path=vendor/bundle || bundle install --path=vendor/bundle --jobs=4 --retry=3  returned exit code 127
  
  Action failed: bundle install
  </code></pre>