Authorize An Org failed because force:auth:web:login is not a sfdx command

While setting up VS code for LWC there are many steps to follow.

after creating a project next step is to connect VScode with the playground org.

Run SFDX: Authorize an Org in VSCode is the command to connect with the org.

Issue

Issue while running SFDX: Authorize an Org command.

Starting SFDX: Authorize an Org

15:23:41.710 sfdx force:auth:web:login --setalias VSCodePlayground --instanceurl…