Built failed with following message:
ionic serve
Starting app-scripts server: --address 0.0.0.0 --port 8100 --livereload-port 35729 --dev-logger-port 53703 --nobrowser -
Ctrl+C to cancel
[10:49:50] watch started ...
[10:49:50] build dev started ...
[10:49:50] clean started ...
[10:49:50] clean finished in 1 ms
[10:49:50] copy started ...
[10:49:50] deeplinks started ...
Error: Cannot read property 'text' of undefined
at new BuildError (/Users/macbook/IdeaProjects/Billz/Mobile/billz.io/node_modules/@ionic/app-scripts/dist/util/errors.js:16:28)
at /Users/macbook/IdeaProjects/Billz/Mobile/billz.io/node_modules/@ionic/app-scripts/dist/deep-linking.js:57:21
at <anonymous>
[10:49:50] copy finished in 247 ms