C++ / compilation of a program fatal error: QtGui/qwidget.h: No such file or directory

Question

我下载了一个需要 qt4 的 linux 应用程序。我已经在我的电脑上了。

当我想在终端中使用 make 编译程序时出现以下错误。

[  6%] Building CXX object CMakeFiles/util_convert.dir/moc_planeviewer.cxx.o
In file included from /usr/include/qt4/QtGui/QMainWindow:1:0,
             from /home/Desktop/plane/src/planeviewer.h:3,
             from /home/Desktop/plane/src/moc_planeviewer.cxx:9:
/usr/include/qt4/QtGui/qmainwindow.h:45:27: fatal error: QtGui/qwidget.h: No such file or directory
 #include <QtGui/qwidget.h>
                           ^
compilation terminated.
make[2]: *** [CMakeFiles/util_convert.dir/moc_planviewer.cxx.o] Error 1
make[1]: *** [CMakeFiles/util_convert.dir/all] Error 2
make: *** [all] Error 2

我不明白，因为我已经检查了所有内容。对于这些不同的命令行，我有以下输入：

qmake --version

QMake version 2.01a
Using Qt version 4.8.6 in /usr/lib/x86_64-linux-gnu

定位qwidget.h

/opt/qt/5.4/android_armv7/include/QtWidgets/qwidget.h
/opt/qt/5.4/gcc_64/include/QtWidgets/qwidget.h
/usr/include/qt4/Qt/qwidget.h
/usr/include/qt4/QtGui/qwidget.h

所以文件已经存在。

案例中的CmakeList

find_package(Boost 1.58 REQUIRED COMPONENTS serialization program_options python)
find_package(PythonLibs 2.6 REQUIRED)

set(QT_USE_QTSVG TRUE)
set(QT_USE_QTXML TRUE)
set(QT_USE_QTOPENGL TRUE)
find_package(OpenGL)
find_package( Qt4 REQUIRED )

INCLUDE_DIRECTORIES("${Boost_INCLUDE_DIRS}")
INCLUDE_DIRECTORIES("${PYTHON_INCLUDE_PATH}")
INCLUDE_DIRECTORIES(${QT_QTCORE_INCLUDE_DIR} ${QT_QTGUI_INCLUDE_DIR} ${QT_QTSVG_INCLUDE_DIR}
                    ${QT_QTXML_INCLUDE_DIR} ${QT_QTOPENGL_INCLUDE_DIR} ${OPENGL_INCLUDE_DIRS})

QT4_WRAP_UI(util_convert_FORMS planeviewer.ui)
QT4_WRAP_CPP(util_convert_MOCS planeviewer.h planewidget.h)
ADD_EXECUTABLE(util_convert ${util_convert_FORMS} ${util_convert_MOCS} plane.cpp util_convert.cpp planeviewer.cpp planewidget.cpp objects.cpp coordinates.cpp utils.cpp)
TARGET_LINK_LIBRARIES(util_convert ${Boost_LIBRARIES} ${QT_QTCORE_LIBRARY} ${QT_QTGUI_LIBRARY} ${QT_QTSVG_LIBRARY}
                                  ${QT_QTXML_LIBRARY} ${QT_QTOPENGL_LIBRARY} ${OPENGL_LIBRARIES})

我是如何编译的:

转到 src/ 然后执行 cmake . 最后 make。错误发生在制作步骤。

在发帖之前，我已经在网上搜索过了，但还没有找到解决办法。

有人可以帮助我吗？

Answer 1

感谢@gomons，我能够编译它。

我在 CmakeList 中添加了以下行：

INCLUDE_DIRECTORIES("/usr/include/qt4/")

Answer 2

问题出在INCLUDE_DIRECTORIES。我认为在您的示例中 QT_QTGUI_INCLUDE_DIR 变量的值为 /usr/include/qt4/QtGui，但您需要将 /usr/include/qt4 添加到 INCLUDE_DIRECTORIES，因为在代码包含语句中使用路径 <QtGui/qwidget.h>:

INCLUDE_DIRECTORIES("/usr/include/qt4")

C++ / compilation of a program fatal error: QtGui/qwidget.h: No such file or directory

C++ / compilation of a program fatal error: QtGui/qwidget.h: No such file or directory

c++

qt

qmake

compilation