---
lang: en
title: 'API docs: repository.entitynotfounderror._constructor_'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/strongloop/loopback-next/tree/master/packages/repository
permalink: /doc/en/lb4/apidocs.repository.entitynotfounderror._constructor_.html
---

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[Home](./index.md) &gt; [@loopback/repository](./repository.md) &gt; [EntityNotFoundError](./repository.entitynotfounderror.md) &gt; [(constructor)](./repository.entitynotfounderror._constructor_.md)

## EntityNotFoundError.(constructor)

Constructs a new instance of the `EntityNotFoundError` class

<b>Signature:</b>

```typescript
constructor(entityOrName: typeof Entity | string, entityId: ID, extraProperties?: Props);
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  entityOrName | typeof [Entity](./repository.entity.md) \| string |  |
|  entityId | ID |  |
|  extraProperties | Props |  |