QCoreapplication error on hello world

  • Hello_World_2\main.cpp:1: error: QCoreApplication: No such file or directory #include <QCoreApplication>

    I tried adding QT=+widgets which has worked in the past.

    .pro file

    TEMPLATE = app
    CONFIG += console
    CONFIG -= app_bundle
    CONFIG -= qt
    SOURCES += main.cpp
    QT     += widgets


    #include <QCoreApplication>
    #include <iostream>
    using namespace std;
    int main ()
       return 0;

  • Lifetime Qt Champion


    Remove CONFIG -= qt

    Currently you are trying to use Qt in a non Qt project

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