# SigningError · FT4 TypeScript client · Chromia Docs (concept)

> Thrown to indicate that an error occurred during signing.
Such an error could for example be that the user rejected
the signature in MetaMask. Hierarchy Er

Source: https://docs.chromia.com/pages/ft4-ts-client/classes/authentication.SigningError/

Class

# SigningError

On this page

* [Constructors](#constructors)
* [constructor](#constructor)
* [Properties](#properties)
* [originalError](#originalerror)

Thrown to indicate that an error occurred during signing.
Such an error could for example be that the user rejected
the signature in MetaMask.

#### Hierarchy

* Error
  + SigningError

## Constructors

### constructor

* ```signature
  new SigningError(message: string, originalError: Error): SigningError
  ```

  #### Parameters

  + message: string
  + originalError: Error

  #### Returns [SigningError](https://docs.chromia.com/pages/ft4-ts-client/classes/authentication.SigningError/)

  Overrides Error.constructor

## Properties

### originalError

```signature
originalError: Error
```

[View this page on docs.chromia.com](https://docs.chromia.com/pages/ft4-ts-client/classes/authentication.SigningError.html)Generated API reference, mirrored from the live docs