# Overview ## `CommonError {}` The `CommonError` abstract object to throw an [identified](/error/getting-started/basic-concepts.md#identification) error with a [solution](/error/getting-started/basic-concepts.md#fix) to the described [problem](/error/getting-started/basic-concepts.md#problem), additional [type](/error/getting-started/basic-concepts.md#type), and [range](/error/getting-started/basic-concepts.md#range) built on the [template](/error/getting-started/basic-concepts.md#template). {% embed url="" %} `common-error.class.ts` {% endembed %} ### Accessors | | | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | |

public get fix(): string
The get accessor obtains a possible solution to the described problem by returning the #fix property of a specified object

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public get id(): Id | undefined
The get accessor gets the error identification by returning the #id property of a specified object.

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public get link(): string | undefined
The get accessor gets the link(to read more about the thrown error) by returning the #link property of a specified object.

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public get message(): string
The get accessor gets the error message by returning the parent message property of the Error object.

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public get problem(): string
The get accessor gets the problem by returning the #problem property of a specified object.

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public get template(): string
The get accessor gets the template of the error message by returning the #template property of a specified object.

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

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

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#fix: string
A privately stored possible solution to the described problem of a string type.

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#id?: Id
A privately stored unique identification of the described problem of generic type variable Id.

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#link?: string
The optional privately stored link of string type redirects to read more about the thrown error.

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#problem: string
A privately stored problem of a string type.

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#template: string
A string-type privately stored template of the error message that contains replaceable required {fix}, {problem} and optional {id}, {max}, {min}, {type} tags.

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

protected static defineMessage(): string
The static "tag" method builds from the given values the error message of a string type on the template.

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protected static isError(): value is CommonError<Id>
Checks whether the value of any type is a this instance of any or the given identification.

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