Qt can't include anything

  • I have a problem with Qt. I made some code yesterday and yesterday
    everything worked fine, but today it doesn't want to compile. I reinstalled Qt two times and still got same message on different projects. Someone know how to deal with this? Here is error that i got from compile output

    C:/Qt/Tools/mingw492_32/bin/mingw32-make -f Makefile.Debug
    mingw32-make[1]: Entering directory 'C:/Users/michal/Documents/build-Game_2-Desktop_Qt_5_6_3_MinGW_32bit-Debug'
    g++ -c -pipe -fno-keep-inline-dllexport -g -std=gnu++0x -frtti -Wall -Wextra -fexceptions -mthreads -DUNICODE -DQT_DEPRECATED_WARNINGS -DQT_QML_DEBUG -DQT_MULTIMEDIA_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_NEEDS_QMAIN -I..\Game_2 -I. -I..\..\..\..\Qt\5.6.3\mingw49_32\include -I..\..\..\..\Qt\5.6.3\mingw49_32\include\QtMultimedia -I..\..\..\..\Qt\5.6.3\mingw49_32\include\QtWidgets -I..\..\..\..\Qt\5.6.3\mingw49_32\include\QtGui -I..\..\..\..\Qt\5.6.3\mingw49_32\include\QtANGLE -I..\..\..\..\Qt\5.6.3\mingw49_32\include\QtNetwork -I..\..\..\..\Qt\5.6.3\mingw49_32\include\QtCore -Idebug -I. -I..\..\..\..\Qt\5.6.3\mingw49_32\mkspecs\win32-g++  -o debug\game.o ..\Game_2\game.cpp
    g++ -c -pipe -fno-keep-inline-dllexport -g -std=gnu++0x -frtti -Wall -Wextra -fexceptions -mthreads -DUNICODE -DQT_DEPRECATED_WARNINGS -DQT_QML_DEBUG -DQT_MULTIMEDIA_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_NEEDS_QMAIN -I..\Game_2 -I. -I..\..\..\..\Qt\5.6.3\mingw49_32\include -I..\..\..\..\Qt\5.6.3\mingw49_32\include\QtMultimedia -I..\..\..\..\Qt\5.6.3\mingw49_32\include\QtWidgets -I..\..\..\..\Qt\5.6.3\mingw49_32\include\QtGui -I..\..\..\..\Qt\5.6.3\mingw49_32\include\QtANGLE -I..\..\..\..\Qt\5.6.3\mingw49_32\include\QtNetwork -I..\..\..\..\Qt\5.6.3\mingw49_32\include\QtCore -Idebug -I. -I..\..\..\..\Qt\5.6.3\mingw49_32\mkspecs\win32-g++  -o debug\bullet.o ..\Game_2\bullet.cpp
    ..\Game_2\bullet.cpp:6:31: warning: unused parameter 'parent' [-Wunused-parameter]
     Bullet::Bullet(QGraphicsItem *parent){
    g++ -pipe -fno-keep-inline-dllexport -g -std=gnu++0x -frtti -Wall -Wextra -fexceptions -mthreads -DUNICODE -DQT_DEPRECATED_WARNINGS -DQT_QML_DEBUG -DQT_MULTIMEDIA_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_NEEDS_QMAIN    ../Game_2/bullet.cpp   -o ../Game_2/bullet
    In file included from ../Game_2/bullet.cpp:2:0:
    ../Game_2/bullet.h:3:19: fatal error: QObject: No such file or directory
     #include <QObject>
    compilation terminated.
    <builtin>: recipe for target '../Game_2/bullet' failed
    mingw32-make[1]: Leaving directory 'C:/Users/michal/Documents/build-Game_2-Desktop_Qt_5_6_3_MinGW_32bit-Debug'
    makefile:34: recipe for target 'debug' failed
    mingw32-make[1]: *** [../Game_2/bullet] Error 1
    mingw32-make: *** [debug] Error 2
    14:46:40: The process "C:\Qt\Tools\mingw492_32\bin\mingw32-make.exe" exited with code 2.
    Error while building/deploying project Game_2 (kit: Desktop Qt 5.6.3 MinGW 32bit)
    When executing step "Make"
    14:46:40: Elapsed time: 00:03.

    And here is a code:
    I dunno what is going on. I think that something in bullet class isn't right because i got an error from there.

  • Moderators

    Hi, welcome to the forum.

    Try this:
    Close Qt Creator.
    Delete Game_2.pro.user file.
    Delete the C:/Users/michal/Documents/build-Game_2-Desktop_Qt_5_6_3_MinGW_32bit-Debug and C:/Users/michal/Documents/build-Game_2-Desktop_Qt_5_6_3_MinGW_32bit-Release directories.
    Open Qt Creator and your project, select one kit and build.

    Btw. The .user file is a local, user specific configuration file. You shouldn't put that in a repository.
    Btw.2 Your .user file indicates that you have configured your project to use 5 different Qt kits. Was that really your intention?

  • I did what you wrote and still same problem. That wasn't my intention to use 5 Qt kits, i am new to Qt so i still learning how to use this.

  • Qt Champions 2017

    Just tried your project and it just works.
    Did you delete the build folder as Mr @Chris-Kawa suggests?
    alt text

  • yup i deleted them and still same problem :(

  • Qt Champions 2017

    And you also deleted the .user file and re-selected ONE compiler/kit ?
    The code works here so its not the code :)

  • yup i did that and still same problem :(

  • Lifetime Qt Champion


    In that case, did you check that you didn't modify your Qt installation somehow ?

    Did you check your Kit ?

  • I think i didn't modify anything. I reistalled it and did everything same like the first time. Everything looks fine. Dunno what's is going on.

  • Lifetime Qt Champion

    Did you have any system update happening in between ?

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