What steps will reproduce the issue? 1. Use native custom events or add custom event plugin for Angular with its own syntax, for example this library: https://github.com/TinkoffCreditSystems/ng-event-plugins 2. Subscribe to the event within template, like this "(my-custom-event)" or with library example above "(click.stop)" What is the expected result? I do not see an error because it is valid syntax What happens instead? I see an error that this output is not provided by any directive image.png…