Issues while running rust function in Azure using VSCode

I am trying the following link to get started with Rust on Azure -

I am encountering the following hickup while executing the command :

func start

restarted VSCode, but the issue remains. Any idea to get rid of it ?

I'm not familiar with Azure function, but I think you need to install the command line tool. from the page you linked, probably the "install or update core tools" section is what you missed: