message: Fixed typo that was causing error
diff: @@ -162,7 +162,7 @@ class AlexaInteractionModel {
  throw new Error(errorPrefix + 'Invocation cannot be empty');
  }
  if (alexaModel.interactionModel.languageModel.invocationName.length < 2 ||
  - alexaModel.interactionModel.language.invocationName.length > 50) {
  + alexaModel.interactionModel.languageModel.invocationName.length > 50) {
  throw new Error(errorPrefix + 'Invocation name must be between 2 and 50 characters.');
  }
  