虚析构函数没有显式声明。在Dialog头文件中添加：virtual Dialog::~Dialog();试试。我不确定产生这个错误的具体原因。
H 111 Qt 5.9.9 -> Desktop 64位H 212H 113 Qt 5.9.9 -> Qt网络Authorization Qt 5.9.9 ->Qt脚本(Deprecated) qtwebkit版本: 5.212 运行npm后,项目将失败,并出现以下错误: 代码语言:javascript 复制 >dexi-browser-webkit@0.2.0install/home/rando/Desktop/git/master-node/node/browser_engines/src/brows...
D:/msys64/mingw64/qt5-static/include/QtWidgets/qstyleoption.h:640:108: warning: implicitly-declared 'QStyleOptionGroupBox& QStyleOptionGroupBox::operator=(const QStyleOptionGroupBox&)' is deprecated [-Wdeprecated-copy] 640 | QStyleOptionGroupBox(const QStyleOptionGroupBox &other) : QStyleOption...
-Wconstexpr-not-const 'constexpr' non-static member function will not be implicitly 'const' in C++1y add 'const' to avoid a change in behavior -Wconsumed state of variable '%0' must match at the entry and exit of loop -Wconsumed parameter '%0' not in expected state when the functi...
If the element type isn't a standard Qt/C++ type, it must be declared using Q_DECLARE_METATYPE() as well. Example: Q_DECLARE_METATYPE(QVector<int>) ... qScriptRegisterSequenceMetaType<QVector<int> >(engine); ... QVector<int> v = qscriptvalue_cast<QVector<int> >(engine->...
result.isNull()) break; } } } if (result.isNull()) result = QString::fromUtf8(sourceText); replacePercentN(&result, n); return result; } // Declared in qglobal.h QString qtTrId(const char *id, int n) { return QCoreApplication::translate(nullptr, id, nullptr, n); } bool Q...
# 1、qmake 生成 Makefile23:22:27: 正在启动"C:\Qt\5.15.2\mingw81_32\bin\qmake.exe"E:\qt_project\HelloQt\HelloQt.pro -spec win32-g++"CONFIG+=debug""CONFIG+=qml_debug"23:22:28: 进程"C:\Qt\5.15.2\mingw81_32\bin\qmake.exe"正常退出。
Values for enums declared with Q_ENUMS are not available as properties of individual wrapper objects; rather, they are properties of theQMetaObjectwrapper object that can be created withQScriptEngine::newQMetaObject(). Conversion Between QtScript and C++ Types ...
The ISO C++ Standard specifies that all virtual methods of a class that are not pure-virtual must be defined, but does not require any diagnostic for violations of this rule [class.virtual]/8. Based on this assumption, GCC will only emit the implicitly defined constructors, the assignment op...
definition. A signal may be explicitly attached to aslot, a signal handler function, by theQObject::connect()method; or as happens here, is implicitly associated with QML where QML code that uses the property will automatically update when the signal is emitted. These methods are declared in...