Angular 9 - NGCC fails with an unhandled exception

Question

Buidling the application after having upgraded dependcies to Angular 9 (and having performed necessary code changes) throws an error:

Compiling @ang

Answer 1

Well in my case I was trying to run an angular project of an older version with a newer version of node. I did this:

Removes all the existing nodule modules.

rm -rf node_modules

update node js to latest

npm update
npm install

updates the angular project version to the latest

ng update @angular/core

updates the project cli to the latest

ng update @angular/cli

Now start the project

ng-serve