```ruby
require 'chefspec'
require 'chefspec/berkshelf'

at_exit { ChefSpec::Coverage.report! }
```

Fix for 'uninitialized constant RSpec::Matchers::BuiltIn::RaiseError::MatchAliases (NameError)'
user
```ruby
require 'chefspec'
require 'chefspec/berkshelf'
require 'rspec/expectations'

at_exit { ChefSpec::Coverage.report! }
```
assistant