[Home](./index.md) > [@contract-case/case-boundary](./case-boundary.md) > [IResultPrinter](./case-boundary.iresultprinter.md) > [printMatchError](./case-boundary.iresultprinter.printmatcherror.md) ## IResultPrinter.printMatchError() method Called by ContractCase to ask the DSL to print an individual match error line. **Signature:** ```typescript printMatchError(MatchErrorDescription: PrintableMatchError): Promise; ``` ## Parameters | Parameter | Type | Description | | --------------------- | ------------------------------------------------------------- | ----------- | | MatchErrorDescription | [PrintableMatchError](./case-boundary.printablematcherror.md) | | **Returns:** Promise<[BoundaryResult](./case-boundary.boundaryresult.md)>