Repairing Rails and Server and on Nitrous.io

Question

I was doing One Month Rails's tutorial on Nitrous.io. At one point, some weird files appeared on my tree, and I deleted them. Everything stopped working.

I ran:

$ git add .
$ git checkout -f

and restored the tree.

BUT, when I ran:

$ rails server

I get:

action@first-project-48185:~/pinteresting$ rails server                                                                                                        
-bash: rails: command not found

I also tried:

$ ruby -v #and got an older version, so I reinstalled it
$ rails -v

action@first-project-48185:~/pinteresting$ rails -v                                                                                                            
-bash: rails: command not found

When I run:

$ ruby -v #on MAC terminal, I get the correct version
$ rails -v #on MAC terminal, I get the correct version

Interestingly, when I run:

$ rails server or $ rails server -p 4000

I get:

Franciscos-MacBook-Pro:pinteresting franciscomello$ rails server
/Library/Ruby/Gems/2.0.0/gems/sqlite3-1.3.8/lib/sqlite3.rb:6:in `require': cannot load such file -- sqlite3/sqlite3_native (LoadError)

and a bunch of other text below:

from /Library/Ruby/Gems/2.0.0/gems/sqlite3-1.3.8/lib/sqlite3.rb:6:in `rescue in <top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/sqlite3-1.3.8/lib/sqlite3.rb:2:in `<top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
    from /Users/franciscomello/Desktop/pinteresting/config/application.rb:7:in `<top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:76:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:76:in `block in <top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:73:in `tap'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:73:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'
Franciscos-MacBook-Pro:pinteresting franciscomello$ rails server -p 4000
/Library/Ruby/Gems/2.0.0/gems/sqlite3-1.3.8/lib/sqlite3.rb:6:in `require': cannot load such file -- sqlite3/sqlite3_native (LoadError)
    from /Library/Ruby/Gems/2.0.0/gems/sqlite3-1.3.8/lib/sqlite3.rb:6:in `rescue in <top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/sqlite3-1.3.8/lib/sqlite3.rb:2:in `<top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
    from /Users/franciscomello/Desktop/pinteresting/config/application.rb:7:in `<top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:76:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:76:in `block in <top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:73:in `tap'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:73:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

What's frustrating is I was on my largest streak without any errors or bugs :(

Any ideas?

Answer 1

I can't tell why Rails is no longer working from those errors, but I would recommend reinstalling rails. Run the following command to reinstall Rails:

gem install rails

From here you should be able to run rails server.

You could also run bundle install within the project directory if your Gemfile includes other gems which need to be installed.