I installed rasa and following your tutorial. And I need to use custom action. I have uncommented helloworld action and added intents,story,actions successfully. Then I retrain my model successfully. Then I used rasa run actions in cmd1 and rasa shell in cm2. It gives me follwing error: ############################################################### 2019-07-20 18:26:39 ERROR rasa.core.actions.action - The model predicted the custom action ‘action_hello_world’, but you didn’t configure an endpoint to run this custom action. Please take a look at the docs and set an endpoint configuration via the --endpoints flag. https://rasa.com/docs/rasa/core/actions 2019-07-20 18:26:39 ERROR rasa.core.processor - Encountered an exception while running action ‘action_hello_world’. Bot will continue, but the actions events are lost. Make sure to fix the exception in your custom code. ################################################################### Now tell me how to use custom action and where I am wrong. Please help me I am a newbie.
Hey there @im-singh, did you also uncomment the action_endpoint in your endpoints.yml file? 
Otherwise sounds like you did everything right!
it works thank you.