Qt undefined reference to mainwindow. cpp \ QBinaryTreeView_p.
Qt undefined reference to mainwindow #include "mainwindow. h" #include <QtWidgets/QMainWindow> #include Jul 2, 2019 · Hi @aha_1980. Since that part is working now, please mar Mar 21, 2014 · I get this error: error: undefined reference to 'MainWindow:: Undefined reference in simple Qt program. zip file, sure enough there's a . 4\mingw491_32\include\QtCore\qobject. May 2, 2012 · In the following code I have a class derived from QMainWindow in the file 'main. It has for my previous signals and slots when making connections. pro file missing and "Textvisare. h \ QBinaryTreeView. Jan 22, 2009 · I'm struggling to get a QWT plot into my application with so little documentation -- an official intro/howto guide would be helpful. This source file has to be compiled with the class definition. If that's not the problem and the Widget class it can't find a Widget(QWidget*) constructor for is your own class, then the problem might just be that there isn't an implementation in the widget's . 11 Operating Sy Oct 31, 2020 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. First of all, I run the QT Creator 2. I now have TWO "subdirs" projects - my main one , the one which refuses to work , and working "helper project". cpp\ mainwindow Feb 8, 2015 · I am trying to add property title into the main window of my application. /moc_mainwindow. T Apr 22, 2013 · You can add lib folder to /etc/ld. Jan 26, 2022 · I'm trying to store passwords in my QT project using Qkeychain. Jan 10, 2021 · @suslucoder said in error: undefined reference to `non-virtual thunk to MainWindow::~MainWindow()': MainWindow And the MainWindow destructor. #pragma once #include <QWidget> #include <QBoxLayout> #include <QPushButton> #include "newwindow. myQThread-> start (); : QThread (parent) void MyThread::writeData() { QFile:: copy ("C:/Users/ilknu/Documents/deneme/thread. The example CMakeLists is: Mar 26, 2024 · This topic has been deleted. When I included the CppUnit Library path and the headers in the . – wkl Commented Dec 1, 2010 at 6:01 Apr 7, 2017 · Hello friends. The problem is that now the App just doesn't compile, i have 3 errors referring to this 3 spinboxes on the moc_mainwindow file. Oct 14, 2013 · I'm quite new in QT, but im hanging in there. why is this happen Jul 24, 2015 · But, I'm getting 'undefined reference to' errors for these -> MainWindow::on_qeLabel_dbValueChanged(QString const&) MainWindow::on_ShutterOpen_dbValueChanged(QString const&) Here is the bit of mainwindow. check it doesn't want a param. I have a very simple OpenCV/Qt project that is setup to be compiled on Windows/Linux/Mac OS X. Sorry but your question and the strange unneeded use of static functions are c++ basic stuff (and don't even have something to do with Qt). h. Asking for help, clarification, or responding to other answers. so what you mean is: add my Application-project to the unit-test-project as a library instead of adding its path and source/header files. cpp as follows: communicate. The command I use is the following: g++ main. 0\mingw_64\lib -lQt6Widgets -lQt6Gui -lQt6Core -lQt6EntryPoint -o executabl_test I get the following error: undefined reference to `WinMain' the complete output is the following: May 2, 2011 · Your compilation log does not fit with your example: in your log, your linker tries to link @main. I m getting following error: error: undefined reference to `QVTKWidget::QVTKWidget(QWidget*, QFlags<Qt::WindowType>)' Dec 1, 2010 · @John - it's a Qt macro, which means this source file has to be run through a separate Qt tool (moc. 0 SOURCES += main. /libmainwindowex. I know there are many references to this problem in this forum and in many others. Jun 14, 2018 · When I compile by Qt Creator ,it tell me undefined reference to `vtable for<class name>. o mainwindow. When I try to compile my unit test application it fails with the undefined reference to `QSerialPort:: I have written function for splitting sentence to words, but something went wrong after I wanted to work with it. cpp : #include "mainwindow. mainwindow. _ Offline \PlottingCharts\mainwindow. Nov 29, 2021 · @JonB Yes, all the compiler needs is to know the type of the symbol. You have done all the solutions presented in each topic that you have reviewed but Apr 7, 2017 · Hello friends. pro file doesn't have a line removing it as its otherwise included by default (aka, you don't want a line saying QT -= gui). 2k Views Apr 7, 2017 · @remizero Ok I found your problem. 1 and Qt5. If I place all Qt related class headers and sources files on the s Nov 26, 2020 · undefined reference to 'QVTKWidget::QVTKWidget' in ui. cpp (I followed the example from this youtube video, especially after about the 15 minute mark) Dec 1, 2019 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. undefined reference to `MainWindow::server' i don't wana declare server as public variable 24th March 2014, 04:24 #2. Jun 14, 2022 · New question because the previous one was poorly constructed. But for clear answer about app's lib folder better to google or ask someone who more familliar with linux programming than me, I'm not sure someone else will see your comment here. They did the same thing where they make an add_library called "QWAMLib" where they add all the header and source files except main. Apr 7, 2017 · Hello friends. Try Teams for free Explore Teams Dec 22, 2022 · Hello, I'm looking to use the right DLL package in order to define viOpenDefaultRM@4 However, after including the path to the DLL folder in WD_V5-masterv2. Apr 7, 2017 · Hi, Did you check whether you have warning lines with libraries not found message ? Note that you greaterThan(QT_MAJOR_VERSION, 4): lines don't make sense. h,commmunicate. h" #include <QtWidgets/QMainWindow> #include Jan 10, 2021 · I could not solve these problems. Nov 26, 2015 · Qt and C++ - undefined reference to slot. You've got local definitions within functions, but those variables aren't the global one you probably think you are assigning to. I created 3 files communicate. . Remove this. _ Offline Mar 26, 2024 · error: undefined reference to `__imp_WSAStartup' QtWS: Super Early Bird Tickets Available! Scheduled Pinned Locked Moved Unsolved General and Desktop Apr 17, 2013 · Hi guys, i'm just freaking out trying to connect to a database with my qt. Aug 21, 2016 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. I have taken sample code for testing the setup from here. cpp\ mainwindow. Jun 16, 2020 · You declared a global variable at the top of your header file. I tried Mar 21, 2015 · Hi and welcome to devnet. The main function looks like this: I'm using . But when I try to compile it, the compiler gives me this error: mainwindow. Jan 29, 2016 · When I tried to compile, Qt Creator complains that: mainwindow. Jul 6, 2016 · I am compiling my code with caffe, opencv 3. Jul 2, 2019 · Hi @aha_1980. Mar 22, 2011 · You're not linking to everything you should. Jul 11, 2022 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. 出现原因分析 Undefined reference to 错误:这类错误是在连接过程中出现的，可能有两种原因∶ （1）是使用者自己定义的函数或者全局变量所在源代码文件，没有被编译、连接； （2）干脆还没有定义，这需要使用者根据实际情况修改源程序，给出全局变量或者函数的定义体。 Jan 10, 2021 · I could not solve these problems. But the linker needs the actual definitions to be able to point to them in the binaries (for example it needs to know where a function is to be able to put the address to it where it is called). o moc_mainwindow. cpp file Ask questions, find answers and collaborate at work with Stack Overflow for Teams. txt and included Core. Qt: Undefined reference to 'vtable for MyClass' 8. I've added Core. c and Core. h to add_executable() in CMakeLists. So in my system I have PCL 1. Explore Teams Jan 22, 2009 · I'm struggling to get a QWT plot into my application with so little documentation -- an official intro/howto guide would be helpful. If you had any signals or slots, it would do Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Jul 2, 2019 · Hi @aha_1980. I'm struggling in it all day:( But when I compile the example in VTK/Examples, nothing fails. 0. so press F2 on TS7Client(); and see if it can go there. cpp) containing qobject related definitions including the missing staticMetaObject. Jun 21, 2020 · Bonjour, je ne comprends une erreur de mon code sous qt, c’est pour cela qui je vous écris. password and DATA_BLOB* data. 13:35:55: Starting: "/usr/bin/make" I'm a beginner making a program in Qt creator. This can be avoided if I put TopLevelWindow in a headerfile. Viewed 24k times Mar 26, 2024 · This topic has been deleted. Perhaps you should pass one as a parameter to the other form. But my writing thread does not work This a problem unrelated to this topic. Apr 24, 2021 · I want to use PCL to visualise point cloud data. so* extensions. this exactly what I am looking for as an answer. Only users with topic management privileges can see it. undefined reference to `vtable for MainWindow' 1. h #ifndef COMMUNICATE_H #def Apr 13, 2021 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Aug 28, 2022 · 1. En effet dans mon code fichier Mainwindow. Your top level CMakeLists. Also, delete the build directory, run qmake and then build again. h in MainWindow. serversocket (QObject * parent =0); logform * varLogForm; QSet<QTcpSocket *> clients; Apr 7, 2017 · So since you never included that library path or linked to the mainwindow lib that is why things are undefined. /. I know this is not the standard way of writing. Feb 2, 2016 · Hi, I want to use test a QT Desktop GUI application project using CppUnit Framework. Most likely you have to add. h" #include <q Jan 30, 2024 · @Christian-Ehrlicher said in Qt 6 undefined reference to `qMain(int, char**)':. cpp files, and add e. 4. h Nov 2, 2013 · Your problem is that moc is not being run on your files, or its result is not getting linked. pro file: LIBS += -L. This code give an error when compiled - ' undefined reference to vtable for TopLevelWindow ' . Mar 21, 2015 · "undefined reference to 'vtable for MainWindow'". "https://github. undefined reference to `vtable (with minimal example) 0. invalid use of non-static member function( in qt) 15. cpp:13: error: undefined Mar 31, 2013 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. cpp \ QBinaryTreeView. Regards, May 31, 2014 · I put the quazip. o serialsid. Now I am trying to add an interface and dialog windows, with the intention of redirecting SDL video output to a QWidget, allowing me to keep all my original code. h:14: error: 'QLineSeries' does not name a type QLineSeries *series; ^ So clearly Qt doesn't know anything about QLineSeries. Learn c++ first before starting with Qt since Qt is a c++ library and without basic knowledge it's impossible to use Qt properly. explicit MainWindow(QWidget *parent = 0); ~MainWindow(); void on_Input_A_textChanged(const QString &arg1); void on_add_clicked(); Ui::MainWindow *ui; Mar 14, 2019 · 编译Qt程序时， 编译器 报error: undefined reference to `MainWindow::~MainWindow ()'。 这是因为Qt语法较严格，不会自动生成类的析构函数，需要程序员自己编写，即便里面什么内容也没有。 所以，手写好MainWindow::~MainWindow ()后，再编译问题就消失了。 析构函数 （Destructor）也是一种特殊的成员函数，没有返回值，不需要程序员显式调用（程序员也没法显式调用），而是在销毁对象时自动执行。 构造函数的名字和类名相同，而析构函数的名字是在类名前面加一个 ~ 符号。 Dec 2, 2022 · I am trying to learn CMake for Qt along with the QTest module with some inspiration from KDAB's Unit Testing Video from Youtube. 31\c++\build\win64, but a dead giveaway is that the directory contains a dxl_x64_cpp. Feb 10, 2019 · The undefined reference is most likely caused by a missing moc file. cpp:4: error: undefined reference to `vtable for MyThread' C:\Qt Jan 10, 2021 · I could not solve these problems. cpp:12: error: undefined reference to `MyThread::numberchange(int)' C:\Qt\5. I am trying a DIFFERENT way to resolve this AND could use some help. cpp'. The golden rules are: Make sure the Q_OBJECT macro is present in the definition of all QObject-derived classes. 7. h" #include <QtWidgets/QMainWindow> #include Jul 2, 2019 · Hi @aha_1980 Actually i debug around and came to know serialport widget need to be added in the . 1. But if I try to consume the QuaZip class in mainwindow code I get "undefined reference to" errors when building. Apr 8, 2014 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. It resolved my issue. SOURCES += main. cpp and CMakeLists. I use CMake and conan to get all packages and build the application. It is working Jan 17, 2018 · @mrjj said in Snap7 Undefined Reference to TS7Client::TS7Client():. here are some issue I've encounter: make: Entering directory Jun 3, 2015 · I use QtCreator with MinGW and Qt 5. c file, I have added the . To confirm I added this to your examples/maingui/maingui. so: undefined reference to `typeinfo for QMainWindowLayout' Jan 17, 2018 · @mrjj said in Snap7 Undefined Reference to TS7Client::TS7Client():. 8. 2) on Windows 8. cpp \ QBinaryTreeView_p. Could somebody explain why this happens? Jan 10, 2021 · connect (myThreadObject, &MyThread::writingDone, this, &MainWindow::writingDoneByThread); // Start the new thread . cpp Scheduled Pinned Locked Moved General and Desktop 6 Posts 3 Posters 26. Dec 17, 2013 · The shared library compiles fine without any errors. Provide details and share your research! But avoid …. h and in mainwindow. You need to run moc on your . This topic has been deleted. undefined reference to 'engOpen' before Qt 6. cpp \ qabstractitemview_p. However, when compiling my code I get these two errors: undefined reference to 'WinMain@16'. Jun 2, 2022 · @ofmrew said in Undefined reference to constructor:. but my problem now is how to add my Application-project as a library (sorry, could not understand your code Dec 2, 2022 · @Christian-Ehrlicher I am trying to take a similar approach to KDAB's example with the Qt Console Project. He did it with a Qt Console Project which I am trying to learn with a Qt MainWindow Project. I checked the values at the break point and the looked OK. Sometimes when i switch the compiler kit it compiles fine but than if i add another class that inherits Exception, it again doesn't work. password, NULL, NULL, NULL, NULL, (DWORD) 0, data. I already used set (CMAKE_AUTOMOC ON) and also qt5_wrap_cpp. h \ QBinaryTreeView_p. h Mar 26, 2024 · This topic has been deleted. cpp Feb 27, 2023 · I do it in command line and I use mingw_64 Version 12. Dec 23, 2012 · I am a beginner to Qt programming and use codeblocks for my programming. cpp Mar 26, 2024 · This topic has been deleted. Modified 6 years, 6 months ago. h:239: error: undefined reference to `MyThread::staticMetaObject' C:\Qt\Tools\QtCreator\bin\Threaded_GUI\mythread. The question is how do I solve the free function problem? C++ Qt: undefined reference to `_imp___ZN12QApplicationC1ERiPPci' Ask Question Asked 11 years, 5 months ago. Just trying to put a button, and when its clicked, i want it to print "Hello, World!" to the next lineEdit. I have given up trying to physically find the "linker" problem. Mar 12, 2018 · I stumbled across this problem recently, and because it took me so long to find the solution I decided to add this answer here. No idea what this means, but never mind. pro files, which are a lot of stuff. cpp. Or, in case of forward declaration, only that it exists and is a data structure (class/struct). When linking the application, the linker produces the following error:. I just checked the . I'm using Qt Creator 4. Jun 5, 2013 · >A better approach in my opinion is to setup the project you want to test as a static library. conf placed, I don't remember it clearly). pro fil Nov 8, 2017 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Regards, Sep 6, 2016 · This topic has been deleted. 4. Please show your main. h in your example. I had tried to do this even I copy three file to another independent dir , but it still show undefined reference to `vtable for<class name>. I also ran into this problem yesterday and the above mentioned answers did't help. pro as you can see the lines below, I get viOpenDefaultRM not defined. I am wo Mar 23, 2017 · I'm trying to connect Matlab with QT. Sep 13, 2017 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. One way to force this to happen is to call qt_wrap_cpp() on it directly (instead of on MainWindow. pro file. txt might look like: You probably forgot to update your Srcs variable to include all necessary cpp files to build the MainWindow target (executable). As a result you omit the code for implementing the MainWindow class entirely in the add_executable(MainWindow ${Srcs}) statement. llib and a . o -LC:\Qt\6. 0 (not the one in the Qt folder) to make the links. Apr 26, 2017 · "QT += serialport" - only adds support for serialport to your app (makes the serial port Qt classes available) "QT +=core gui serialport" - same as above but adds core and gui modules as well You only need to add modules you need, as @mrjj said you find which modules a class belongs to in its documentation. g. When subclassing a qt object and using the Q_OBJECT macro the Qt Meta-Object Compiler creates a moc file (moc_master-controller. ' There is like this parameter. o voiceview. com/KDAB/kdabtv/tree/master/Qt-Widgets-and-more/UnitTests". txt. But cmake failed with undefined reference to `QQuickWidget::QQuickWidget(QWidget*)' undefined reference May 12, 2024 · Why? Either use autouic or do it manually. May 11, 2022 · @Christian-Ehrlicher nice guess!. Following is my . error: undefined reference to; error: undefined reference to; undefined reference to `openpty' error; Android error: undefined reference to '*****' QT：error: undefined reference to 'xxxx' 解决方式 【Qt】error: undefined reference to `vtable for MainWindow‘ Qt+SDL windows: undefined reference to `qMain(int, char**)' Apr 23, 2021 · Yes, because you lack basic c++ stuff. collect2: ld returned 1 exit status. I made a button that should open Google Chrome using QtProcess::execute(), but I'm getting following errors: F:\Users\Amol-2\Desktop\Imp Docs\C++ apps\ May 1, 2015 · undefined reference to `vtable for MainWindow' QtWS: Super Early Bird Tickets Available! Scheduled Pinned Locked Moved General and Desktop Jun 5, 2015 · C:\Qt\Tools\QtCreator\bin\Threaded_GUI\mainwindow. 0 (based on QT 5. c and . /com/ecosoftware/window -lmainwindow Jan 10, 2021 · I could not solve these problems. On Linux, those files have . h among headers in the PRO file. o@ Dec 9, 2015 · ERROR: undefined reference to `Exception::staticMetaObject' EDIT: Later i found that the MOC doesn't generate moc_exception. ChrisW67. mainwindow. They are not paths, but actual files that contain code. Apr 13, 2016 · undefined reference to `Window::quit()' However, I believed that my use of 'this' in the connection code would make a defined reference to this. Apr 4, 2024 · UPDATE. conf (or wherever ld. Thanks for your help. exe) for a bunch of code to be generated for Qt-specific behaviors like slots and signals. h \ qabstractitemview_p. h files, and #include it. h" class MainWindow : public QWidget { Q_OBJECT public: MainWindow(QWidget *parent = 0); public slots: void openNewWindow(); }; newwindow. h" #include <QtWidgets/QMainWindow> #include As noted, moc is not processing MainWindow. For reference, the linechart and openglseries examples work correctly. 2. cpp and main. Yup, didn't know that, learnt it yesterday and fixed my "header not found" problem by using ${CMAKE_CURRENT_SOURCE_DIR}/gui as a autouic parameter. h" #include "ui_mainwindow. I have not included the actual source and header file names here. Actually i debug around and came to know serialport widget need to be added in the . I've installed and imported the libraries, however I keep on getting "error: undefined refere Mar 30, 2014 · Welcome to Qt Centre. Also, I have used the 'quit' slot in a main window application - so I know that's a relevant slot to use. I come here because of the problem described in the title of the message. When I try to compile, this simple line gets me some errors : CryptUnprotectData(data. I'm programming a little calculator, but getting this problem: error: undefined reference to `MainWindow::on_Input_A_textChanged (QString const&) class MainWindow; Q_OBJECT. What is the problem? May 30, 2014 · I wrote an emulator in SDL which is complete and uses the 2D cross-platform rendering, timing and sound features of SDL. undefinded reference to __imp_ in my case was an indicator of lacking linking option in my compile and link command. Feb 26, 2012 · You need to add the relevant libraries to the linker options. cpp" to the end of myfile. . cpp (I get the includes by auto-completion so they are right in regard to subfolders), I put quazip. h je fais appelle à la classe tube afin d'utiliser le constructeur en question, qui est par la suite initialiser dans le Mainwindow. The few examples lingering around the net are from different versions that use very different syntax, etc. cpp) and then include the resulting file in the call to add_executable(). Nov 15, 2013 · undefined reference errors are a linking problem, which means that your project compiled successfully but the linker is unable to find the binary code for those functions. 6. What is my mistake? mainwindow. Then you should run ldconfig. Here my SourceCode: mainwindow. txt", "C:/Users/ilknu/Documents/MyThread/new. Jan 15, 2013 · This creates the problem where QtCreator will be expecting the library to never change to the point where removed headers cause building the project to fail, and new classes are reported as undefined even if they compile into the library just fine. Apr 26, 2021 · Hello, I receive errors about Undefined reference to staticMetaObject when I have a class that is derived from a parent class which inherits QObject. QT += core gui network greaterThan(QT_MAJOR_VE Dec 2, 2022 · @Christian-Ehrlicher I am trying to take a similar approach to KDAB's example with the Qt Console Project. cpp Alternatively, you have declared a virtual function (destructor perhaps) without defining it. Regard Feb 12, 2012 · Make sure the . Regards, Jul 12, 2016 · I'm new to Qt. uncryptedPassword ) Gets me : undefined reference to `_imp__CryptUnprotectData@28' Apr 3, 2013 · [SOLVED] Build failure : undefined reference to `gluPerspective' Scheduled Pinned Locked Moved Installation and Deployment 13 Posts 5 Posters 26. so. My small application uses the main window class from this shared library for its main window and therefore links to the shared library. Explore Teams Feb 14, 2006 · Re: linker error: undefined reference to vtable for MainWindow Apart from the fact there is a . h" #include <QtWidgets/QMainWindow> #include Jan 10, 2021 · @suslucoder said in error: undefined reference to `non-virtual thunk to MainWindow::~MainWindow()': @SGaist I fixed that problem. Jan 15, 2021 · 文章浏览阅读5w次，点赞9次，收藏11次。这里要解决问题的是QT构建中的error: undefined reference to而不是undefined reference to vtable for "xxx::xxx"QT构建编译出现error: undefined reference to时，请先确认语法是否有错（建议单独新建一个项目只检查出错的代码是否语法有误）。 May 1, 2015 · undefined reference to `vtable for MainWindow' QtWS: Super Early Bird Tickets Available! Scheduled Pinned Locked Moved General and Desktop Jan 10, 2021 · I could not solve these problems. To get PCL runnig with Qt, VTK library is also required. It looks like you do not include one of your own classes in the . I'm trying to create a Qt project that will use C code for logic-related stuff and C++ for UI. extern QString globelusername; But you never define it. Jan 11, 2021 · @suslucoder Don't worry, just mark @Christian-Ehrlicher's answer as the "solution" from the vertical dots button at the right of his message :) Nov 6, 2017 · Hi all, I want to use QQuickWidget in my application. I'm trying to implement a really simple calculator program. cpp:-1: error: undefined reference to ` Jun 14, 2022 · I'm trying to create a Qt project that will use C code for logic-related stuff and C++ for UI. 9k Views Mar 26, 2024 · This topic has been deleted. 10 and VTK 7. dll in there, in DynamixelSDK-3. txt"); emit writingDone(); Mar 30, 2014 · To access a public member variable of function you need an instance of MainWindow (pointer, reference or actual instance). I tried to remember what I did, because I had a working version but it stopped working after "some" changes. Try Teams for free Explore Teams Dec 11, 2014 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Feb 9, 2014 · Whenever I compile my program in debug mode it works perfectly fine, however when I compile it in Release mode I get the following errors: moc_mainwindow. May 22, 2013 · I am building a Unit-Test using this tutorial. o moc_voiceview. Sep 29, 2018 · Description of Problem, Request, or Question When I add Q_OBJECT to my class declaration header, I get undefined reference to vtable for babel::MainWindow Package Details (Include if Applicable) Package Name/Version: Qt/5. Ask Question Asked 15 years, 5 months ago. h include in mainwindow. h:xxx There is no LINK errors and any include fault, just can't detect this variable. cpp:19: undefined reference to `MainWindow:: Sep 6, 2016 · This topic has been deleted. I know there are many references to this problem in this forum and i Nov 25, 2024 · For the past 4 days I am stuck here with this error, can't find help on google search: C:\Users\D Besta\Documents\sample_qgis_pro\mainwindow. Jul 4, 2016 · In qt MainWindow::on_pushButton_clicked(); If i want to call the function from another . sln file. 15th February 2006, 00:43 #6 May 2, 2012 · [Solved] Undefined reference to vtable - class in main. The blocks with win32:CONFIG and else:unix: etc are not correct. h" seems incorrect, the project links fine on my gcc installation. #include "moc_myfile. This is basic C++ knowledge and nothing to do with Qt. But compile still show fail, it shows: undefined reference to `Load_bmp(char const*, int*, int*, int*) How could i solve this issue, thanks. 2 and QT 5. cpp:66: undefined reference to `MainWindow::doSomething()' Dec 11, 2019 · Ok i changed the kit but now i'm getting back to my initial issue which I encountered outside of Qt creator : the undefined reference to main :(13:35:55: Running steps for project anchorage 13:35:55: Configuration unchanged, skipping qmake step. Oct 12, 2021 · I'm new to Qt and I'm trying to do a simple VoIP application. Libraries are added with -l options (lower-case L). cpp:27: error: undefined reference to '_imp__is_InitCamera' Strange that I was typing the line is_ , the IDE auto-complete the syntax to is_InitCamera . cpp HEADERS += mainwindow. uncryptedPassword); ( with DATA_BLOB* data. Jan 22, 2013 · I can compile my Qt project in Terminal bash but I'm having problems compiling with Qt Creator. Aug 26, 2020 · Hi, 我在这里可以提个关于QT的问题吗？ 因为我应用需要用CUDA, 但是CUDA的分离编译要求用静态链接，所以我不得不用Qt (It should have been generated for you -- you are running Qt's moc on your code before compiling, right?) To answer a little more thoroughly, the Q_OBJECT macro signals Qt's moc tool to create an extra implementation file that contains the code necessary to support QObject's meta-information system. I don't remember the exact syntax since I don't work with qmake much any more (prefer cmake) so I'll let you google it or someone else can come in and tel Apr 7, 2017 · Hello friends. Im working on a project, and everything was OK, until i deleted spin boxes (and related functions) from my main window, because a decided to use some other tools instead. Jul 27, 2016 · Beside that I have nothing better as an explanation, since the information about the exact errors (undefined reference to is one of the most generic linker errors there is) and the events leading to them (what link line produced the errors, what symbols were referenced in the Qt project, what symbols were available from the boost binary, etc Jun 26, 2020 · I use google unit test + qt test to test the library. rbbjspqq liap zalfj fknlvr qzjdkq agyzdl vdyti ngdbp okr ninxh