mikefarah/yq · error

all only supports arrays, was %v

Error message

all only supports arrays, was %v

What it means

The all operator iterates context.MatchingNodes and requires every matched node to be a SequenceNode, because it evaluates its predicate expression against each element. A matched node of any other kind (tag shown in the message, e.g. !!map or !!str) makes 'all' meaningless, so it errors out immediately.

Source

Thrown at pkg/yqlib/operator_booleans.go:91

				// no results found, ignore this entry
				continue
			}
		}

		if isTruthyNode(node) == wantBool {
			return true, nil
		}
	}
	return false, nil
}

func allOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
	var results = list.New()

	for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
		candidate := el.Value.(*CandidateNode)
		if candidate.Kind != SequenceNode {
			return Context{}, fmt.Errorf("all only supports arrays, was %v", candidate.Tag)
		}
		booleanResult, err := findBoolean(false, d, context, expressionNode.RHS, candidate)
		if err != nil {
			return Context{}, err
		}
		result := createBooleanCandidate(candidate, !booleanResult)
		results.PushBack(result)
	}
	return context.ChildContext(results), nil
}

func anyOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
	var results = list.New()

	for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
		candidate := el.Value.(*CandidateNode)
		if candidate.Kind != SequenceNode {
			return Context{}, fmt.Errorf("any only supports arrays, was %v", candidate.Tag)

View on GitHub (pinned to 8b5af0694b)

Solutions

1. Apply all only to array nodes, e.g. .items | all(... > 3)
2. Wrap the value: [ .foo ] | all(...) if a single-element check is wanted
3. Check for nulls/empties upstream and handle them before all
4. Use any/all on .[] collected results: [ .[] | ... ] | all(...)

When it happens

Trigger: Thrown at pkg/yqlib/operator_booleans.go:91 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of mikefarah/yq@8b5af0694b (2026-09-05). Data as JSON: /api/errors/1eaab129baad5af8. Report an issue: GitHub.