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Troubleshooting common issues

Stuck using Bundler? Browse these common issues before filing a new issue.

Permission denied when installing bundler

Certain operating systems such as macOS and Ubuntu have versions of Ruby that require elevated privileges to install gems.

ERROR:  While executing gem ... (Gem::FilePermissionError)
  You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory.

There are multiple ways to solve this issue. You can install bundler with elevated privileges using sudo or su.

sudo gem install bundler

If you cannot elevate your privileges or do not want to globally install Bundler, you can use the --user-install option.

gem install bundler --user-install

This will install Bundler into your home directory. Note that you will need to append ~/.gem/ruby/<ruby version>/bin to your $PATH variable to use bundle.

Heroku errors

Please open a ticket with Heroku if you’re having trouble deploying. They have a professional support team who can help you resolve Heroku issues far better than the Bundler team can. If the problem that you are having turns out to be a bug in Bundler itself, Heroku support can get the exact details to us.

Other problems

First, figure out exactly what it is that you’re trying to do (see XY Problem). Then, go to the Bundler documentation website and see if we have instructions on how to do that.

Second, check the compatibility list, and make sure that the version of Bundler that you are using works with the versions of Ruby and RubyGems that you are using. To see your versions:

# Bundler version
bundle -v

# Ruby version
ruby -v

# RubyGems version
gem -v

If these instructions don’t work, or you can’t find any appropriate instructions, you can try these troubleshooting steps:

# Update to the latest version of bundler
gem install bundler

# Remove user-specific gems and git repos
rm -rf ~/.bundle/ ~/.gem/bundler/ ~/.gems/cache/bundler/

# Remove system-wide git repos and git checkouts
rm -rf $GEM_HOME/bundler/ $GEM_HOME/cache/bundler/

# Remove project-specific settings
rm -rf .bundle/

# Remove project-specific cached gems and repos
rm -rf vendor/cache/

# Remove the saved resolve of the Gemfile
rm -rf Gemfile.lock

# Uninstall the rubygems-bundler and open_gem gems
rvm gemset use global # if using rvm
gem uninstall rubygems-bundler open_gem

# Try to install one more time
bundle install
Edit this document on GitHub if you caught an error or noticed something was missing.