App Builder latest version start

I found a problem to start App Builder into a local env


  • clone release/v7.3.0 (5f9cab6)
  • npm install and start

and request http://localhost:3000/ loops forever with console error
Warning: Invalid argument supplied to oneOfType. Expected an array of check functions, but received undefined at index 1. at AppTour.js:539

behind http://localhost:8080/entando-de-app/ works