```ruby
require 'test_bed/version'

require 'grit'
require 'pivotal-tracker'
require 'optparse'
require 'fileutils'

require 'test_bed/config'
require 'test_bed/base'
```

Correct the name for configuration file
user
```ruby
require 'test_bed/version'

require 'grit'
require 'pivotal-tracker'
require 'optparse'
require 'fileutils'

require 'test_bed/configuration'
require 'test_bed/base'
```
assistant