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Fatal error qtwidgets qapplication

Tagged with 致命的エラー, 致命的エラー: QApplication:, fatal error, make, not found, QApplication, qmake, QT5. « [ 覚書] / etc/ resolv. As you noticed Qt directory structure changed between Qt4 and Qt5. QWidget header moved to a QtWidgets directory. # include < QApplication> # include < QtWidgets> int main( int argc, char * argv[ ] ) { QApplication app( argc, argv) ; QWidget w; w. That it doesn' t always jump straight there is a flaw, but then so' s the inclusion of examples with no support by default. To start things off, the error QApplication: no such file or directory means your compiler was not able to find this header. # include < QtGui/ QComboBox> / / incorrect in QT5 # include < QtWidgets/ QComboBox> / / correct in QT5. I/ usr/ include/ qt5/ QtGui - I/ usr/ include/ qt5/ QtCore - I. cpp: 1: 24: fatal error: QApplication: No such file or directory # include < QApplication> ^ compilation terminated. make: * * * [ textpad. You won' t believe it, but I just had with a very old project exactly the same problem you had: Error QApplication: no such file or directory. What I discovered: I added, as I proposed, MESSAGE( $ { QT_ INCLUDES} ) to my.

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  • Video:Error fatal qapplication

    Qapplication qtwidgets error

    QApplication: No such file or directory. \ Nokia\ devices\ Nokia_ Symbian_ Belle_ SDK_ v1. 0\ epoc32\ include\ mw\ qtgui. I' ve re- read your error log, and everything looked fine until I re- formatted it a little. 致命的エラー: QtGui/ QApplication: そのようなファイルやディレクトリはありません』 こりゃあ確かに致命的だ。 ディレクトリから違う、 つまりクラスとオブジェクトの分類の仕方 から違うのか。 早速内部を見て、 調査してみる。 cd / usr/ include/ qt5. src/ osd/ modules/ debugger/ debugqt. cpp: 20: 30: fatal error: QtWidgets/ QApplication: No such file or directory # include < QtWidgets/ QApplication> ^ compilation terminated. make: 361: recipe for target '. You can try to add ' declarative' to the Project file: QT + = gui declarative. then # include < QApplication>. cpp: 18: 34: fatal error: QtWidget s/ QApplication: No such file or directory # include < QtWidgets/ QApplication> compilation terminated.