chef generate app chef_vault_example does not work

[ghazanhaider]

This command does not work:
`root@AZLAPNCFYU10:~# chef generate app chef_vault_example
Usage: chef generate GENERATOR [options]

Available generators:
cookbook Generate a single cookbook
recipe Generate a new recipe
attribute Generate an attributes file
template Generate a file template
file Generate a cookbook file
helpers Generate a cookbook helper file in libraries
resource Generate a custom resource
repo Generate a Chef Infra code repository
policyfile Generate a Policyfile for use with the install/push commands
generator Copy ChefDK's generator cookbook so you can customize it
build-cookbook Generate a build cookbook for use with Chef Workflow (Delivery)`

The format has changed in chefdk 4.11.0 apparently