# NotAFormulaError

Error thrown when the the provided string is not a valid formula, i.e does not start with "="

## Constructors

### constructor 

\+ **new NotAFormulaError**(): *[NotAFormulaError](notaformulaerror.md)*

*Defined in [src/errors.ts:47](https://github.com/handsontable/hyperformula/blob/b8542ec/src/errors.ts#L47)*

**Returns:** *[NotAFormulaError](notaformulaerror.md)*

## Properties

### message 

• **message**: *string*

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### name 

• **name**: *string*

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### stack

• **stack**? : *undefined | string*

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### Error

▪ **Error**: *ErrorConstructor*