bundle: command not found

cap output

cap deploy
  * executing `deploy'
  * executing `deploy:update'
 ** transaction: start
  * executing `deploy:update_code'
    updating the cached checkout on all servers
    executing locally: "git ls-remote [email protected]:chrislerum/sempermed.git master"
    command finished in 1519ms
  * executing "if [ -d ~/sites/sempermed/shared/cached-copy ]; then cd ~/sites/sempermed/shared/cached-copy && git fetch -q origin && git fetch --tags -q origin && git reset -q --hard 19646cdab9e22380d626719864e138f0eff7eeaa && git clean -q -d -x -f; else git clone -q [email protected]:chrislerum/sempermed.git ~/sites/sempermed/shared/cached-copy && cd ~/sites/sempermed/shared/cached-copy && git checkout -q -b deploy 19646cdab9e22380d626719864e138f0eff7eeaa; fi"
    servers: ["184.168.90.42"]
Password: 
    [184.168.90.42] executing command
    command finished in 2963ms
    copying the cached version to ~/sites/sempermed/releases/20120229150618
  * executing "cp -RPp ~/sites/sempermed/shared/cached-copy ~/sites/sempermed/releases/20120229150618 && (echo 19646cdab9e22380d626719864e138f0eff7eeaa > ~/sites/sempermed/releases/20120229150618/REVISION)"
    servers: ["184.168.90.42"]
    [184.168.90.42] executing command
    command finished in 1125ms
  * executing `deploy:finalize_update'
  * executing "chmod -R g+w ~/sites/sempermed/releases/20120229150618"
    servers: ["184.168.90.42"]
    [184.168.90.42] executing command
    command finished in 263ms
  * executing "rm -rf ~/sites/sempermed/releases/20120229150618/log ~/sites/sempermed/releases/20120229150618/public/system ~/sites/sempermed/releases/20120229150618/tmp/pids &&\\\n      mkdir -p ~/sites/sempermed/releases/20120229150618/public &&\\\n      mkdir -p ~/sites/sempermed/releases/20120229150618/tmp &&\\\n      ln -s ~/sites/sempermed/shared/log ~/sites/sempermed/releases/20120229150618/log &&\\\n      ln -s ~/sites/sempermed/shared/system ~/sites/sempermed/releases/20120229150618/public/system &&\\\n      ln -s ~/sites/sempermed/shared/pids ~/sites/sempermed/releases/20120229150618/tmp/pids"
    servers: ["184.168.90.42"]
    [184.168.90.42] executing command
    command finished in 758ms
    triggering after callbacks for `deploy:finalize_update'
  * executing `bundle:install'
  * executing "ls -x ~/sites/sempermed/releases"
    servers: ["184.168.90.42"]
    [184.168.90.42] executing command
    command finished in 242ms
  * executing "cd ~/sites/sempermed/releases/20120229150618 && bundle install --gemfile ~/sites/sempermed/releases/20120229150618/Gemfile --path ~/sites/sempermed/shared/bundle --deployment --quiet --without development test"
    servers: ["184.168.90.42"]
    [184.168.90.42] executing command
 ** [out :: 184.168.90.42] sh: bundle: command not found
    command finished in 246ms
*** [deploy:update_code] rolling back
  * executing "rm -rf ~/sites/sempermed/releases/20120229150618; true"
    servers: ["184.168.90.42"]
    [184.168.90.42] executing command
    command finished in 338ms
failed: "sh -c 'cd ~/sites/sempermed/releases/20120229150618 && bundle install --gemfile ~/sites/sempermed/releases/20120229150618/Gemfile --path ~/sites/sempermed/shared/bundle --deployment --quiet --without development test'" on 184.168.90.42