解决: 参考链接:https://stackoverflow.com/questions/19761767/qt-5-cmake-fails-with-undefined-reference-to-vtable-on-hello-world-with-inc-sr 忘了些东西...尴尬 修改后的CMakeLists cmake_minimum_required(VERSION 3.13) project(untitled1) set(CMAKE_CXX_STANDARD 14) set(CMAKE_AUTOMOC ON) set(C...
解决办法: 在CMakeLists.txt中添加math库链接, traget_l... 我们都是大好青年 0 841 undefined reference to `std::__cxx11::basic_string<char, 2019-11-13 09:41 −centos上编译报错,部分信息如下: /usr/local/lib/libprotobuf.so.9: undefined reference to `std::__cxx11::basic_string<char, ...
make: Entering directory `/sda6-112G-data/qt-space/login/login-build-desktop-Desktop_Qt_4_8_1_for_GCC__Qt_SDK___' g++ -c -pipe -O2 -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/opt/QtSDK/Desktop/Qt/4.8.1/gcc/mkspecs/linux-g++ -I../log...
宏Q_OBJECT会被编译器展开为一些成员方法的声名,这些方法会被moc实现。如果你收到编译器的报错“undefined reference to vtable for LcdNumber”,你可能忘了运行moc或者在link命令中包含moc的输出。 请注意,只有value_不等于new_value时,setValue()函数才会改变value_的值并发出信号。这防止环形连接情况下的无限循环。
set(CMAKE_INCLUDE_CURRENT_DIR ON) set(CMAKE_AUTOUIC ON) set(CMAKE_AUTOMOC ON) set(CMAKE_AUTORCC ON) set(CMAKE_CXX_STANDARD 11) set(CMAKE_CXX_STANDARD_REQUIRED ON) # QtCreator supports the following variables for Android, which are identical to qmake Android variables. ...
1818 What is an undefined reference/unresolved external symbol error and how do I fix it? 1546 Filename too long in Git for Windows 563 Undefined reference to vtable Load 7 more related questions Browse other questions tagged c++ windows qt cmake qt6 or ask your own...
I'm learning CPP and this weekend I learn more about QT, I'm using CLion and Cmakelist. I try to compile a project but when I add the macro Q_OBJECT it's say me : undefined reference to `vtable for DigitalClock' I'm looking for solved my problm and add AUTOMOC but it still do...
但国内似乎比较浮躁,学Qt的很多连基本的C++如何编译似乎都不太清楚。本文舍弃IDE或qmake、cmake等工具的束缚,尝试通过几个例子,一步一步从标准 C++ 的编译过渡到 Qt 的编译。 本文涉及的都是最基本的东西,或许可以说,只要你用C++ Qt,不管是通过哪种工具(qmake、cmake、boost.build、qtcreator、vs2008、Eclipse、...
QT /home/ltq/lidar_slam/src/qt_app/src/mainwindow.cpp:-1: error: undefined reference to `vtable for MainWindow' 解决方案: 需要对mainwindow.h moc,在CMakeList.txt中添加: qt5_wrap_cpp(mainwindow_SRC include/qt_app/mainwindow.h) add_executable()里加上mainwindow_SRC...
我有一个用CMake设置的项目(这不是一个Qt项目)。当我用QtCreator打开这个项目时,它很好地找到了所有相关文件,并且项目浏览器中的文件按字母顺序排列如下: Project + abc.cpp + abc.h + def.cpp + def.h 但是,如果我使用QtCreator和一个基于QMake的项目,则头和源可以很好地分开,如下所示: Project + ...