kubernetes/kops · error

Field cannot be changed: %s

Error message

Field cannot be changed: %s

What it means

Error "Field cannot be changed: %s" thrown in kubernetes/kops.

Source

Thrown at upup/pkg/fi/errors.go:33

*/

package fi

import (
	"fmt"

	"k8s.io/apimachinery/pkg/api/validation"
	"k8s.io/apimachinery/pkg/util/validation/field"

	"k8s.io/kops/util/pkg/reflectutils"
)

func RequiredField(key string) error {
	return fmt.Errorf("Field is required: %s", key)
}

func CannotChangeField(key string) error {
	return fmt.Errorf("Field cannot be changed: %s", key)
}

func FieldIsImmutable(newVal, oldVal interface{}, fldPath *field.Path) *field.Error {
	details := fmt.Sprintf("%s: old=%v new=%v", validation.FieldImmutableErrorMsg, reflectutils.FormatValue(oldVal), reflectutils.FormatValue(newVal))
	return field.Forbidden(fldPath, details)
}

View on GitHub (pinned to 4c8573c808)

When it happens

Trigger: Thrown at upup/pkg/fi/errors.go:33 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of kubernetes/kops@4c8573c808 (2026-09-05). Data as JSON: /api/errors/c732a696b5922354. Report an issue: GitHub.