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Fatal error qapplication file not found

First, check it you have the file. I' ve re- read your error log, and everything looked fine until I re- formatted it a little. there appeared a mistake after ' make' : ' QApplication' file not found. I have a top level CMakeList. txt file containing: FIND_ PACKAGE( Qt4. error: QApplication: No such file or directory which seems to indicate. You can try to add ' declarative' to the Project file:. # include < QtWidgets/ QApplication>. and also use # include < QApplication> instead of # include < QtGui/ QApplication>. When you reopen it, all headers will be detected. Not sure about the path in mac, but on Linux the class QApplication is defined at following location ( qt4).

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    If you are building from command line, including a header file with gcc can be done with following switch - I< path to. I found that I needed to add this to the makefile: QT_ HOME = / usr/ lib/ x86_ 64- linux - gnu/ qt5/. This was actually on Debian jessie, not Ubuntu. 04 if you get the same error:. - I/ usr/ include/ qt5/ QtCore - I. cpp: 1: 24: fatal error: QApplication: No such file or. Of course you can get all the QT4 libraries if its not present using:. To start things off, the error QApplication: no such file or directory means your. of a version conflict between QT 3 and 4, as can be seen here :. cpp: 1: 26: fatal error: qapplication. h: No such file or directory # include ^ compilation terminated. o] Error 1 09: 38: 51:. Error while building/ deploying project untitled1 ( kit: Desktop) When executing step ' Make' 09: 38: 52: Elapsed time: 00: 01.

    pro in my system? To start things off, the error QApplication: no such file or directory means your compiler was not able to find this header. Your problem seems to be a symptom of a version conflict between QT 3 and 4, as can be seen here :. cloned those directories, now qmake is ok, but now compile error with make:. cpp: 1: 30: fatal error: QtGui/ QApplication: No such file or. Failure to find: resources/ resources. qrc / usr/ lib/ qt4/ bin/ rcc: File does not exist. Hi it worked on 12. cpp: 3: error: QtGui/ QApplication: No such file or directory What am I missing? h: 22: 24: fatal error: QApplication: No such file or. I am pretty shure they are needed), but QApplication still can' t be found. I have downloaded UE4 from git, so it should be up to date. sh on a Debian Wheezy with QT 4 installed and get: building.

    with " make" I get the error " QApplication: no such file or directory". I found out that some libraries required the ". h" extension, and some did. 由于Qt5将大部分桌面部件移到了Qt Widgets模块中, 即QApplication已经从原来. 之后提示出错: fatal error: QApplication: No such file or directory. cpp file: # include < QApplication> # include < QLabel> int main( int argc, char * argv[ ] ) { QApplication app( argc, argv) ; / / QApp. QLabel * label = new QLabel( " hello world" ) ; / / QLabel * instead of Qlabel. “ qmake - project” で生成した. proファイルをエディタで開く( ex vi hogehoge. pro) ; 最終行 などに” QT + = widgets “ を.

    Tagged with 致命的エラー, 致命的エラー: QApplication:, fatal error, make, not found, QApplication, qmake, QT5. I just had with a very old project exactly the same problem you had: Error QApplication: no such file or directory. This revealed something very interesting: All my Qt includes pointed to an old Qt 4. 2, which did not exist on. Problem is here: QApplication: No such file or directory. You might not have QT development files installed. If using debian / ubuntu try: apt- get.