[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Type](https://evolu.dev/docs/api-reference/common/Type) › DataError

Defined in: [packages/common/src/Type.ts:15500](https://github.com/evoluhq/evolu/blob/dd96d79f1dbe9a49fa12ce8e0aa7d3d0177795ca/packages/common/src/Type.ts#L15500)

An error containing one or more issues found while validating a candidate as
[Data](https://evolu.dev/docs/api-reference/common/Type/variables/Data).

## Extends

- [`TypeError`](https://evolu.dev/docs/api-reference/common/Type/interfaces/TypeError)\<`"Data"`\>

## Properties

<a id="reason"></a>

### reason

```ts
readonly reason: {
  issues: readonly [DataIssue, DataIssue];
  kind: "Issues";
};
```

Defined in: [packages/common/src/Type.ts:15501](https://github.com/evoluhq/evolu/blob/dd96d79f1dbe9a49fa12ce8e0aa7d3d0177795ca/packages/common/src/Type.ts#L15501)

| Name     | Type                                                                                                                                                              | Defined in                                                                                                                                             |
| -------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `issues` | readonly \[[`DataIssue`](https://evolu.dev/docs/api-reference/common/Type/type-aliases/DataIssue), [`DataIssue`](https://evolu.dev/docs/api-reference/common/Type/type-aliases/DataIssue)\] | [packages/common/src/Type.ts:15503](https://github.com/evoluhq/evolu/blob/dd96d79f1dbe9a49fa12ce8e0aa7d3d0177795ca/packages/common/src/Type.ts#L15503) |
| `kind`   | `"Issues"`                                                                                                                                                        | [packages/common/src/Type.ts:15502](https://github.com/evoluhq/evolu/blob/dd96d79f1dbe9a49fa12ce8e0aa7d3d0177795ca/packages/common/src/Type.ts#L15502) |

---

<a id="type"></a>

### type

```ts
readonly type: "Data";
```

Defined in: [packages/common/src/Type.ts:893](https://github.com/evoluhq/evolu/blob/dd96d79f1dbe9a49fa12ce8e0aa7d3d0177795ca/packages/common/src/Type.ts#L893)

#### Inherited from

[`TypeError`](https://evolu.dev/docs/api-reference/common/Type/interfaces/TypeError).[`type`](https://evolu.dev/docs/api-reference/common/Type/interfaces/TypeError#type)