authError

[vnfmsqkek3]

Hi.
I'm trying for this project.
But it dosen't work. cause auth error.
How can i solve this problem?

[ERROR] 03:51.255 AuthError - 
            Error: Amplify has not been configured correctly. 
            The configuration object is missing required auth properties. 
            Did you run `amplify push` after adding auth via `amplify add auth`?
            See https://aws-amplify.github.io/docs/js/authentication#amplify-project-setup for more information