ERROR @ionic/app-scripts is required for ionic serve to work properly

Question

I have cloned the my old project and run npm install and after that i run ionic serve

And i found this error

[ERROR] @ionic/app-scripts is required for ionic serve to work properly.

Looks like @ionic/app-scripts isn't installed in this project.

This package is required for ionic serve in ionic/angular 4 projects.

Answer 1

To solve the above issue following below commands :

• npm install --rebuild
• npm install node-sass --rebuild
• npm install @ionic/app-scripts@latest --save

Answer 2

Your question's title itself has the answer.

Try to install the following

npm install @ionic/app-scripts@latest --save-dev

Answer 3

I ran into this after updating to Ionic 4. I ended up having to downgrade.

https://github.com/ionic-team/ionic-cli/issues/3399