Package '@angular/core' is not a dependency. while updating angular 8 to angular 9

Question

While updating angular 8 project to angular 9 , getting error

✔ Package successfully installed.
Using package manager: 'npm'
Collecting installed dependencies...
Found 0 dependencies.
Package '@angular/core' is not a dependency.

command I use

ng update @angular/core@9 @angular/cli@9 --force

Hawes

Answer 1

Run command

npm i

then it works

Hawes

Yes, if you don't have the node_modules folder, it won't work. Ensure you resolve any issues with "npm install" first. – Tuberculosis

Could you give a quick explanation for why this works? – Mills

i had same problem , in my case i had to run " npm i " in all sub project(i used angular work space) – Touslesmois

This worked, upgrading 14.0.3 to 14.2.8. – Graphic