Book Getting Started with Camel K contain older 1.4.x branches for all quickstarts in section 5. Specifically Prerequisites step one
https://dxp-docs.ext.us-west.aws.prod.paas.redhat.com/documentation/en-us/red_hat_integration/2021.q4/html-single/getting_started_with_camel_k#deploying-camel-k-tutorials
They need to be updated to version 1.6.x