"Gem bundler is not installed" in Capistrano deployment

Question

Here is the error caused by rake in Capistrano deployment. The error also causes the rollback and failure of the rails 3.1.3 deployment (with rvm installed for single user).

 ** [out :: 76.195.225.93] ←[31mERROR: Gem bundler is not installed, run `gem in
    command finished in 54ms
*** [deploy:update_code] rolling back
  * executing "rm -rf /var/www/byop/releases/20120302230229; true"

gem list shows bundler 1.0.22 installed. What could cause the error? Is it because of the rvm? Thanks so much.

this error looks like from `.rvmrc` file, are you sure the ruby specified there is installed ? — mpapis, Mar 03 '12 at 02:42

score 0 · Accepted Answer · edited May 23 '17 at 11:55

The error disappeared after adding the following in deploy.rb and deployed successfully:

   task :gems, :roles => :web, :except => { :no_release => true } do 
     run "cd #{current_path}; #{shared_path}/bin/bundle unlock" 
     run "cd #{current_path}; nice -19 #{shared_path}/bin/bundle install vendor/" # nice -19 is very important otherwise DH will kill the process! 
     run "cd #{current_path}; #{shared_path}/bin/bundle lock" 
   end

More reading here: Bundle install failing when deploying a Rails 3 app to Dreamhost with Capistrano

"Gem bundler is not installed" in Capistrano deployment

1 Answers1