Ruby - Gems and Bundler
What will happen if you run bundle exec rails server in a Ruby on Rails project without running bundle install first?
What will happen if you run bundle exec rails server in a Ruby on Rails project without running bundle install first?
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the role of bundle install
bundle install installs gems specified in the Gemfile.lock needed for bundle exec to work.
Step 2: Predict behavior without installed gems
Without running bundle install, required gems are missing, causing an error when running bundle exec.
Final Answer:
An error occurs because required gems are missing -> Option DQuick Check:
bundle exec needs gems installed before running [OK]
Quick Trick: Always run bundle install before bundle exec [OK]
Common Mistakes:
- Assuming bundle exec installs gems automatically
- Thinking system gems will be used instead
- Believing server starts with outdated gems
Master "Gems and Bundler" in Ruby
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