Question

来自这个主题： Ubuntu CMake what path to add to CMAKE_MODULE_PATH

我尝试在我的项目中运行QT5，因为QT4不允许我包含QWebView。

按照上述主题的指南，我现在有一个CMakeList.txt：

cmake_minimum_required (VERSION 2.6 FATAL_ERROR)
project (simpleTree)
find_package(Qt5 REQUIRED COMPONENTS Widgets Core) 
find_package (VTK REQUIRED)
find_package (PCL 1.8.0 REQUIRED)

include_directories (${PCL_INCLUDE_DIRS})
link_directories (${PCL_LIBRARY_DIRS})
add_definitions (${PCL_DEFINITIONS})

set (project_SOURCES export/exportply.cpp export/writecsv.cpp main.cpp
         controller.cpp 
         gui/pclviewer.cpp
         import/importpcd.cpp 
         method/SphereFollowing.cpp 
         Model/crown.cpp 
         Model/Cylinder.cpp 
         Model/Segment.cpp 
         Model/Tree.cpp)
set (project_HEADERS controller.h 
         export/writecsv.h
         export/exportply.h
         gui/pclviewer.h
         import/importpcd.h 
         method/SphereFollowing.h 
         Model/crown.h 
         Model/Cylinder.h 
         Model/Segment.h 
         Model/Tree.h)
set (project_FORMS   gui/pclviewer.ui)
set (VTK_LIBRARIES vtkRendering vtkGraphics vtkHybrid QVTK)

QT5_WRAP_CPP (project_HEADERS_MOC   ${project_HEADERS})
QT5_WRAP_UI  (project_FORMS_HEADERS ${project_FORMS})

INCLUDE (${QT_USE_FILE})
ADD_DEFINITIONS (${QT_DEFINITIONS})
ADD_EXECUTABLE (simpleTree ${project_SOURCES}
               ${project_FORMS_HEADERS}
               ${project_HEADERS_MOC})

TARGET_LINK_LIBRARIES (simpleTree ${QT_LIBRARIES} ${PCL_LIBRARIES}       ${VTK_LIBRARIES})

在将QT4线切换到QT5之后，我收到以下错误：

CMake Error at CMakeLists.txt:36 (INCLUDE):
include called with wrong number of arguments.  Include only takes one
file.

所以这告诉我变量QT_USE_FILE现在是一个列表，它不是之前的。不确定这是否正确，并且不确定我能做些什么。

由于扬

Answer 1

CMake Error at CMakeLists.txt:36 (INCLUDE):
include called with wrong number of arguments.  Include only takes one
file.

这意味着变量QT_USE_FILE为空。

在使用Qt5的CMake中，你应该使用宏qt5_use_modules而不是QT_USE_FILE和QT_LIBRARIES。

因此，在您的CMakeLists.txt中，您需要删除行：
INCLUDE (${QT_USE_FILE})
换行：
TARGET_LINK_LIBRARIES (simpleTree ${QT_LIBRARIES} ${PCL_LIBRARIES} ${VTK_LIBRARIES})
在：
TARGET_LINK_LIBRARIES (simpleTree ${PCL_LIBRARIES} ${VTK_LIBRARIES})
并添加行：
qt5_use_modules (simpleTree Widgets)

<强> UPD ：
目前暂时不使用qt5_use_modules，而应使用target_link_libraries simpleTree Qt5::Widgets代替（另请参阅this answer）。

Cmake和QT5 - Include只接受一个参数

1 个答案: