Qt 5.3. QtWidgets:没有这样的文件或目录#include< QtWidgets> [英] Qt 5.3. QtWidgets: No such file or directory #include <QtWidgets>

问题描述

我想编译Qt示例.我收到错误QtWidgets:没有这样的文件或目录#include

I want to compile Qt example. I get error QtWidgets: No such file or directory #include

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets - does not help
QT += widgets                                   - does not help
INCLUDEPATH += /opt/Qt/5.3/Src/qtbase/include/  - does not help

Qt 5.3. Ubuntu 14.04 x64.

Qt 5.3. Ubuntu 14.04 x64.

推荐答案

您需要仔细检查您是否已完成所有这些步骤:

You need to double check that you completed all these steps:

• 已安装模块

• Module installed

greaterThan(QT_MAJOR_VERSION，4):QT + =小部件

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

您重新运行Qt 5 qmake.

You re-run the Qt 5 qmake.

话虽如此，我想提醒您，包括整个模块不是一个好主意，因为它包括所有与小部件相关的东西.尝试将其范围缩小到您真正需要的标题.

Having said that, I would like to remind you that including the whole module is not a good idea as it includes all the widgets related things. Try to narrow it down to the headers that you really need.

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