> For the complete documentation index, see [llms.txt](https://error.angular-package.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://error.angular-package.dev/error/overview.md). # Overview ## `Error {}` The `Error` object is an extension of the [`CommonError`](/commonerror/overview.md) class and is thrown when a runtime error occurs with a [message](https://app.gitbook.com/s/23iV8ygEQUrhqw7I3D8g/~/changes/lXvTfsmAkHoNRKsQjxlq/commonerror/accessors/get-message) built from a [solution](https://app.gitbook.com/s/23iV8ygEQUrhqw7I3D8g/~/changes/lXvTfsmAkHoNRKsQjxlq/commonerror/accessors/get-fix) to the described [problem](https://app.gitbook.com/s/23iV8ygEQUrhqw7I3D8g/~/changes/lXvTfsmAkHoNRKsQjxlq/commonerror/accessors/get-problem) but with additional identification, on the [template](https://app.gitbook.com/s/23iV8ygEQUrhqw7I3D8g/~/changes/lXvTfsmAkHoNRKsQjxlq/commonerror/accessors/get-template). {% embed url="" %} `error.class.ts` {% endembed %} ### Accessors | | | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | |

public get name(): string
Error name of a string type, set to Error that is being thrown.

| |

public get [Symbol.toStringTag](https://error.angular-package.dev/error): string
The get accessor, with the help of toStringTag, changes the default tag to 'Error' for an instance of Error.

| ### Properties | | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | |

public static template: string
A template of the error message of string type with the replaceable {problem}, {fix} and optional {id} tags.

| ### Methods | | | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | |

public static define(): Error<Id>
Defines the Error instance with the message built of the given required problem, fix and optional id on the template.

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public static isError(): value is Error<Id>
Checks whether the value of any type is an instance of Error of any or the given identification.

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