c++预编译问题:fatal error C1083: Cannot open precompiled header file: 'Debug/DllTest.pch': No such file or d
2013-06-28 09:14
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1)单独编译StdAfx.cpp 2)编译所有(即按Ctrl+F7) 这时因为该模块没有包括预编译头文件“stdafx.h”的缘故。 VC用一个stdafx.cpp包含头文件stdafx.h,然后在stdafx.h里包含大部分系统头文件,这 样编译时VC就通过编译stdafx.cpp把大部分系统头文件预编译进来了,在Debug目录下有 一个很大的文件*.pch,这里就存储了预编译信息。 根据这个原理,如果这个pch损坏了或被删除了,系统重新编译时就会抱怨“cannot open precompiled header file debug/*.pch”。这时怎么解决这个问题呢,打开Project-》 Setting对话框选C++页,将Category下拉式列表框选中Precompiled Headers,最简单的 办法就是选中第一个选项“Not using....",这样就根本不用预编译头也不去寻找pch文件, 就不会出错了,但是这样做的后果是每次编译、连接都化更多的时间。 也可以选第二个选项”Automatic ...",然后在“Through header”力填上stdafx.h,这样 如果没有pch文件系统会自动生成一个pch,如果有的话就使用这个pch,这个选项是比较“ 智能”的。 第三个选项是强行创建一个pch文件,第四个选项是直接使用pch文件。当然“Through headers”里都填stdafx.h了。
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