Your global Angular CLI version (11.2.6) is greater than your local version (8.3.29). The local Angular CLI version is used. To disable this warning use "ng config -g cli.warnings.versionMismatch false". 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