---
title: metricsNotFound
framework: Evaluations
role: symbol
role_heading: Instance Property
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, visionOS 27.0+, watchOS 27.0+, xcode 27.0+]
path: evaluations/evaluationrunerrors/metricsnotfound
---

# metricsNotFound

Metric names referenced by MetricsAggregator that no evaluator produced.

## Declaration

```swift
var metricsNotFound: [String]
```

## Discussion

Discussion Typically a typo or missing evaluator; empty on a clean run and when no sample produced inference.