2. 定义变量时候下面出行红线,出现 varible has incomplete type ‘QTextStream’ varible has incomplete type 'QTextStream 未添加QTextStream头文件 3. Qt 信号与槽连接失败的几个原因 4. 报错: invalid use of incomplete type ‘class QMap<QString, QString>‘ 的解决 5.Qt 信号与槽的日常报错: error: u...
1 Qt linux 下 variable has incomplete type ‘QApplication‘ sudo apt-get install libclang-common-8-dev 运行后重启QT
src/main.cpp:16:18: error: variable has incomplete type'QApplication' QApplication a(argc, argv); ^ /anaconda/include/qt/QtCore/qobject.h:453:18: note: forward declaration of 'QApplication' friend class QApplication; ^ src/main.cpp:45:13: error: use of undeclared identifier'QMessageBox...
QT中出现:error: variable `QPainter painter' has initializer but incomplete type #include "picture.h" #include "ui_picture.h" #include"qpainter.h" //一开始在我自己的.cpp中没有加上这个声明,出现了那个错误,加上即可 picture::picture(QWidget *parent) : QMainWindow(parent), ui(new Ui::picture...
cpp:15:22: error: variable has incomplete type 'QString' QString bar(QString) { return QString(); } ^ ../test2/main.cpp:8:7: note: forward declaration of 'QString' class QString; ^ ../test2/main.cpp:15:33: error: invalid use of incomplete type 'QString' QString bar(QString...
.../qt3d/src/plugins/sceneparsers/assimp/contrib/zip/src/miniz.h:4827:30: error: variable has incomplete type 'struct stat64'修改miniz.h中的定义: 把state64修改为state platform/default/thread.cpp:31:31: error: use of undeclared identifier 'SCHED_IDLE'修改~/workspace/qt-everywhere-src-5.15...
其中，最简单地方法是，先全选所有代码（Ctrl + A），然后格式化所选代码（Ctrl + I）——注意字母“...
==0) rc = SOCKET_ERROR;/* The return value from recv is 0 when the peer has performed...
原文链接：点击打开链接 The transition from Qt 4.x to Qt 5 is not expected to be significant. However, the “modularization” of the Qt code base requires some amount of changes to project configuration, such as use of “headers”, and configuration of project build settings (such as ...
Warning: C:/Data/projects/GammaRay/plugins/positioning/mapview.qml:31:9: Property "data" has incomplete type "". You may be missing an import. [missing-property] MapPolyline { ^^^ Warning: C:/Data/projects/GammaRay/plugins/positioning/mapview.qml:35:13: Property "data" has incomplete ...