ahmetb/kubectx · error

failed to delete new context to overwrite it: %w

Error message

failed to delete new context to overwrite it: %w

What it means

While overwriting an existing target context (op.New), DeleteContextEntry failed to remove the existing entry from the kubeconfig before the rename. Fires when the kyaml delete operation on the contexts sequence errors despite the context being reported as present.

Source

Thrown at cmd/kubectx/rename.go:78

		op.Old = cur
	}

	oldExists, err := kc.ContextExists(op.Old)
	if err != nil {
		return fmt.Errorf("failed to check context: %w", err)
	}
	if !oldExists {
		return fmt.Errorf("context \"%s\" not found, can't rename it", op.Old)
	}

	newExists, err := kc.ContextExists(op.New)
	if err != nil {
		return fmt.Errorf("failed to check context: %w", err)
	}
	if newExists {
		printer.Warning(stderr, "context \"%s\" exists, overwriting it.", op.New)
		if err := kc.DeleteContextEntry(op.New); err != nil {
			return fmt.Errorf("failed to delete new context to overwrite it: %w", err)
		}
	}

	if err := kc.ModifyContextName(op.Old, op.New); err != nil {
		return fmt.Errorf("failed to change context name: %w", err)
	}
	if op.Old == cur {
		if err := kc.ModifyCurrentContext(op.New); err != nil {
			return fmt.Errorf("failed to set current-context to new name: %w", err)
		}
	}
	if err := kc.Save(); err != nil {
		return fmt.Errorf("failed to save modified kubeconfig: %w", err)
	}
	_ = printer.Success(stderr, "Context %s renamed to %s.",
		printer.SuccessColor.Sprint(op.Old),
		printer.SuccessColor.Sprint(op.New))
	return nil

View on GitHub (pinned to 12ad6fb22e)

Solutions

1. Inspect the contexts list in the kubeconfig for duplicate or malformed entries with the target name
2. Manually remove the target context entry with kubectl config delete-context <NEW> and retry
3. Validate the kubeconfig YAML and fix structural issues

When it happens

Trigger: Thrown at cmd/kubectx/rename.go:78 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of ahmetb/kubectx@12ad6fb22e (2026-09-02). Data as JSON: /api/errors/a1b8e4c4b0589981. Report an issue: GitHub.