error while npm start serve

Arunraj

event-loop-stats not found, ignoring event loop metrics...
error: [app] Application is crashed: ServiceNotFoundError: Service with "MaybeConstructable<CreateUserTable1546513939916>" identifier was not found in
the container. Register it before usage via explicitly calling the "Container.set" function or using the "@Service()" decorator.

vijayalakshmi

@Arunraj this may be due to package mismatch, make sure you are using node version 14.9.0, typescript version 3.7.2
try to reinstall packages with below comments
npm install typedi@0.8.0 --save npm install typeorm@0.2.5 --save npm install typeorm-typedi-extensions@0.2.1 --save
and then give npm start serve