I created a new ionic 5 project by using
ionic start myApp blank
When I run the project in browser using ionic serve it has given the following error
Error: NGCC failed
I figured out the problem my self
The problem was when I was installing the latest npm packages
it was installing the typescript: 4.0.2 and thats why the NGCC error occured
run the following command and it will work,
npm i typescript@">=3.9.2 <4.0.0”
Or in future some one faces this error this is about the typescript version so just install the valid typescript and you will fix the ngcc error