PS: E \ GitSpace \ app \ gk - phoneapp> Ionic serve
Ng. CMD run app: serve - host=localhost - port=8100
(ng) Schema validation failed with the following errors:
(ng) Data path ". Builders [' app - shell '] "should have the required property 'class'.

[ERROR] ng has unexpectedly closed (exit code 1).

The Ionic CLI will exit. Both Please check any output above for error details.



Launch an error, the front-end bosses a look