Bundler旧版卸载麻烦

Question

我尝试卸载旧版本的捆绑包，但在宝石列表中，他仍然存在。在安装了最新版本的bundler后，我收到有关使用旧版本的bundler for rails 4.0.2的错误。

stasik@stasik-TWH:~/Seti$ gem list bundler
*** LOCAL GEMS ***
bundler (1.2.3)
stasik@stasik-TWH:~/Seti$ gem uninstall bundler
INFO:  gem "bundler" is not installed
stasik@stasik-TWH:~/Seti$ rails new app1
      create  
      create  README.rdoc
      ...
      create  vendor/assets/stylesheets/.keep
         run  bundle install
/usr/bin/ruby1.9.1: No such file or directory -- /usr/share/rubygems-integration/1.9.1/gems/bundler-1.2.3/bin/bundle (LoadError)