---
description: "Learn more about: Fatal error C1256"
title: Fatal error C1256
ms.date: 10/04/2022
f1_keywords: ["C1256", "FATALERROR_PCHInconsistent"]
helpviewer_keywords: ["C1256"]
ms.assetid: 4d65e495-f9d9-435c-ba51-1cf5b4cc2309
---
# Fatal error C1256

> '*plugin-name*': PCH must be both written and read.

The Code Analysis tool reports this error when there's an internal error in the tool, not in the code being analyzed.