在部署Kubernetes（K8s）应用时遇到的错误信息表明什么？

error: error validating "upt-ams-idc-sys-admin-pod.yaml": error validating data: [ValidationError(Deployment.spec): unknown field "containers" in io.k8s.api.apps.v1.DeploymentSpec, ValidationError(Deployment.spec): unknown field "nodeSelector" in io.k8s.api.apps.v1.DeploymentSpec, ValidationError(Deployment.spec): missing required field "selector" in io.k8s.api.apps.v1.DeploymentSpec]; if you choose to ignore these errors, turn validation off with --validate=false在部署Kubernetes（K8s）应用时遇到的错误信息表明什么？