[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [INestedError](./rc-js-util.inestederror.md) ## INestedError interface An error which can have a chain of causes. **Signature:** ```typescript export interface INestedError ``` ## Properties

Property	Modifiers	Type	Description
[causedBy](./rc-js-util.inestederror.causedby.md)	`readonly`	unknown
[stack](./rc-js-util.inestederror.stack.md)	`readonly`	string

## Methods

Method	Description
[causeToString()](./rc-js-util.inestederror.causetostring.md)	Attempt to serialize `causedBy`, where this is not possible, undefined is returned.
[composeErrorMessages()](./rc-js-util.inestederror.composeerrormessages.md)	Create a localized error message that describes what went wrong, and includes some minimal technical detail that's likely to describe the root cause.
[getMessage()](./rc-js-util.inestederror.getmessage.md)
[toString()](./rc-js-util.inestederror.tostring.md)	Stringifies the causes of the error, following the chain. This is intended for developers and includes stack traces at each step.