When you are writing your own manifests for Kubernetes and using them directly, it is very easy to make simple mistakes that result in the error message : error validating ....
These are fortunately very easy to understand, if terribly inconvenient. To illustrate this example, I created a slightly broken deployment manifest:
When running kubectl apply with this manifest, you will receive an error:
error: error validating "test.yml": error validating data: [ValidationError(Deployment.spec.template.spec.containers[0]): unknown field "named" in io.k8s.api.core.v1.Container, ValidationError(Deployment.spec.template.spec.containers[0]): ...
