```ruby
# You also need to explicitly enable OAuth 1 support in the environment.rb or an initializer:
AUTH_10_SUPPORT = true

module Avalon
  module Lti
    begin
      Configuration = YAML.load(File.read(File.expand_path('../../lti.yml',__FILE__)))
    rescue
      Configuration ||= {}
    end
  end
end
```

Make sure Avalon::Lti::Configuration is set when there is no config file
user
```ruby
# You also need to explicitly enable OAuth 1 support in the environment.rb or an initializer:
AUTH_10_SUPPORT = true

module Avalon
  module Lti
    begin
      Configuration = YAML.load(File.read(File.expand_path('../../lti.yml',__FILE__)))
    rescue
      Configuration = {}
    end
  end
end
```
assistant