```
tim@tim-virtual-machine:~/rails_projects/first_app$ bundle install
ERROR: RVM Ruby not used, run `rvm use ruby-1.9.3-p448@rails3tutorial` first.
tim@tim-virtual-machine:~/rails_projects/first_app$ rvm list

rvm rubies

=* ruby-1.9.3-p448 [ i686 ]
   ruby-2.0.0-p247 [ i686 ]

# => - current
# =* - current && default
#  * - default

```

I'm currently using ruby-1.9.3-p448, but why the command 'bundle install' prompt "ERROR: RVM Ruby not used"?