Error after upgrade to "ionic-angular": "^3.1.1"

this is what happend after upgrade to “ionic-angular”: "^3.1.1"version. and “@ionic/app-scripts”: “^1.3.6”,

how to solve please advice, thank you

Maybe try to refresh all your dependencies?

rm -r node_modules
npm install

I will not use npm update any more.
ok, that’s work just remove node_modules folder and then #npm install again.

thank you

Cool to know it worked!