```ruby
require "simplecov"
require "coveralls"
SimpleCov.formatter = SimpleCov::Formatter::MultiFormatter[
  SimpleCov::Formatter::HTMLFormatter,
  Coveralls::SimpleCov::Formatter
]
SimpleCov.start { add_filter "/spec/" }

require "lita-karma"
require "lita/rspec"

Lita.version_3_compatibility_mode = false
```

Use new syntax for setting SimpleCov formatters.
user
```ruby
require "simplecov"
require "coveralls"
SimpleCov.formatters = [
  SimpleCov::Formatter::HTMLFormatter,
  Coveralls::SimpleCov::Formatter
]
SimpleCov.start { add_filter "/spec/" }

require "lita-karma"
require "lita/rspec"

Lita.version_3_compatibility_mode = false
```
assistant