Error: the server could not find the requested resource

Symptom:

We follow the https://book.kubebuilder.io/ and create an example
It error out when we do "make run"
the server could not find the requested resource (put cronjobs.batch.mycrontab cronjob-sample)"}

Solution:

After i check cronjob_types.go , add below, issue is fixed

// +kubebuilder:subresource:status
type CronJob struct {