Your global Angular CLI version (12.0.3) is greater than your local version (11.2.14). The loc code example

Example: Your global Angular CLI version (11.0.2) 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