Unable to Start with Rails.

rubyonrails-talk
21

I've only recently started with Ruby on Rails myself. Check out my insights, procedures, and deployed projects at http://www.jasonhsu.com/ror.html . I put this page together partly as a resource for the Ruby on Rails community but mostly as a reference for myself.

The things I insist on: 1. I do my Ruby on Rails development in VirtualBox. Like you, I found it tricky to properly set everything up - you need the right versions of multiple packages. It felt like I had to make sure all the planets were properly aligned. VirtualBox allows me to install a Linux distro on a virtual drive and take snapshots. If I screw up, I can return to a previous snapshot rather than have to start over. I know that many people like RVM. I tried to use it, but I couldn't get it to work, so I stick to using VirtualBox snapshot to seamlessly switch from one snapshot to another. (I recommend using one of the newest VirtualBox versions so you get the clone feature.) 2. I insist on deploying early and often. This allows me to spot any deployment problems early on and correct them. I once tried waiting until the end to start deployment (because the book did), and I couldn't get my app deployed.

22

Just had one final question... what is the difference between:

bundle exec "command" and directly running the command?

Like for me bundle exec rspec throws and error while rspec does not.

23

Just had one final question… what is the difference between:

bundle exec “command”

and

directly running the command?

“bundle exec” makes sure that you’re using the executables that ship along with

the gem installed by bundler while running only the command uses the one

recognized by your system.

Like for me bundle exec rspec throws and error while rspec does not.

This usually happens when the rspec bundle exec runs is of a different version.

Try getting the version of the rspec executable that works and change your Gemfile

to use that rspec version. Run bundle install and try running rspec again with

bundle exec.