Your global Angular CLI version (11.0.3) is greater than your local version (7.3.10). The local Angular CLI version is used code example

Example: Your global Angular CLI version is greater than your local version

# Install npm-check-updates
$ npm i -g npm-check-updates

# Run npm-check-updates with -u, will upgrade package.json
$ ncu -u

# Install updated packages
$ npm install