[INFO] Waiting for connectivity with ionic-app-scripts

While running “ionic serve” this is being shown for a long time and nothing happens.

[INFO] Waiting for connectivity with ionic-app-scripts…

This suddenly came into my old apps too which was working fine.

Thanks in advance for answers!

Try to run them this way instead of ionic serve:
ionic serve --address localhost
npm run start

ionic serve --address localhost” worked!!!