I have a project which uses Qt5 and I have a CMakeLists.txt file that I use for creating the Visual Studio Solution.
This is an excerpt of my CMakeLists.txt
cmake_policy(SET CMP0020 NEW)
set(CMAKE_AUTOMOC ON)
find_package(Qt5 REQUIRED COMPONENTS core widgets)
set(COMMON_INCLUDE_DIR ${PROJECT_SOURCE_DIR}/src)
include_directories( ${Boost_INCLUDE_DIRS}
${COMMON_INCLUDE_DIR}
)
file(GLOB_RECURSE COMMON_SOURCE "*.hpp" "*.cpp")
add_library(${PROJECT_NAME} ${COMMON_SOURCE})
qt5_use_modules(${PROJECT_NAME} Widgets)
When I try to compile the code it returns the following error:
>AUTOMOC : error : C:/Users/.../Projects/MyProject/build/MyProjects_automoc.cpp The file includes the moc file "moc_MyFile.cpp", but could not find header "MyFile{.h,.hh,.h++,.hm,.hpp,.hxx,.in,.txx}" in C:/Users/.../Projects/MyProject/build/
The moc file have been auto-generated and the header is not in the build folder, but in a folder locate in the src directory.
How is possible to fix this error?
It is good to add:
set(CMAKE_INCLUDE_CURRENT_DIR ON)
when using the AUTOMOC feature. Furthermore, this
include_directories(
...
${QT_USE_FILE}
...
)
is a mistake. It should rather be:
include(${QT_USE_FILE})
Finally, you should only explicitly push sources to compilation, but not headers! As stated in the documentation:
If Q_OBJECT is in the foo.h (i.e. QObject is declared in the header file),
then in the corresponding foo.cpp
don't forget to add #include "moc_foo.cpp", preferably at the end
of the file;
If Q_OBJECT is in the foo.cpp (i.e. QObject is declared in the source file),
then, again, in the foo.cpp itself
don't forget to add #include "foo.moc", preferably at the end
of the file.
Therefore, follow these recommendations and change
file(GLOB_RECURSE COMMON_SOURCE "*.hpp" "*.cpp")
to
file(GLOB_RECURSE COMMON_SOURCE "*.cpp")
You could also find my other answer helpful. Your question is very similar, so I'd recommend to search better before posting next time.
Good luck.