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[Solved] QFtp and qt5 linking problem

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  • D Offline
    D Offline
    darbor
    wrote on last edited by
    #11

    Could you point me step by step how to do this.
    I am a beginner programmer QT.

    I copy qftp.h and qurlinfo.h to ftp example project,
    and
    add to qftp.pro
    line HEADERS += qftp.h qurlinfo.h

    but when i run project i have many errors like:

    C:\Qt\5.1.1\5.1.1\msvc2010_opengl\examples\network\build-qftp-Desktop_Qt_5_1_1_MSVC2010_32bit_OpenGL-Debug\debug\moc_qftp.cpp:125: błąd:C2027: use of undefined type
    'QFtpPrivate'
    c:\qt\5.1.1\5.1.1\msvc2010_opengl\examples\network\qftp\qftp.h:51: see declaration of 'QFtpPrivate'
    ...

    first error go to
    case 9: _t->d->_q_startNextCommand(); break;

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    0
    • G Offline
      G Offline
      grastvei
      wrote on last edited by
      #12

      I can write more details about how to do this after work.

      1 Reply Last reply
      0
      • D Offline
        D Offline
        darbor
        wrote on last edited by
        #13

        Hello
        It's work

        1. build source qt-qtftp
          qmake /Src/qt-qtftp/src/src.pro
          nmake
          nmake install

        after
        change in qt-qtftp/src/qftp/qftp.pro

        @ CONFIG -= static
        CONFIG += shared@

        and compile again

        in lib a have now
        c:\Qt\5.1.1\5.1.1\msvc2010_opengl\lib\Qt5Ftp.dll
        c:\Qt\5.1.1\5.1.1\msvc2010_opengl\lib\Qt5Ftpd.dll
        c:\Qt\5.1.1\5.1.1\msvc2010_opengl\lib\Qt5Ftp.lib
        c:\Qt\5.1.1\5.1.1\msvc2010_opengl\lib\Qt5Ftpd.lib
        c:\Qt\5.1.1\5.1.1\msvc2010_opengl\lib\Qt5Ftpd.pdb
        c:\Qt\5.1.1\5.1.1\msvc2010_opengl\lib\Qt5Ftp.prl
        c:\Qt\5.1.1\5.1.1\msvc2010_opengl\lib\Qt5Ftpd.prl

        1. create file in directory
          c:\Qt\5.1.1\5.1.1\msvc2010_opengl\include\QtNetwork
          QFtp
          and inside add
          @#include "qftp.h"@

        2. copy from source two file
          qftp.h and qurlinfo.h to includes\QtNetwork\

        3. in my project add
          @LIBS += Qt5Ftp.lib@
          and
          @QT += ftp@

        and project finaly build and run:) jupiiii

        1 Reply Last reply
        0
        • JKSHJ Offline
          JKSHJ Offline
          JKSH
          Moderators
          wrote on last edited by
          #14

          Thank you for sharing your solution!

          Qt Doc Search for browsers: forum.qt.io/topic/35616/web-browser-extension-for-improved-doc-searches

          1 Reply Last reply
          0
          • C Offline
            C Offline
            cygnus2k
            wrote on last edited by
            #15

            Hello, I'm on Linux and I have the same problem. Compile the module as shared and static and in no way I can compile the examples. When you modified the .pro filedo not miss you put a -L parameter?

            1 Reply Last reply
            0
            • D Offline
              D Offline
              Dacown
              wrote on last edited by
              #16

              hi,
              doesn't fit 100% to the theme, but I have tried it according to the instructions, but with the Creator.
              The compilation works so far. However I have 3 problems:

              cd qftp\ && C:\Qt\5.14.0\mingw73_32\bin\qmake.exe -o Makefile C:\Qt\qt-everywhere-src-5.14.0\qtbase\src\qtftp\examples\qftp\qftp.pro -spec win32-g++ "CONFIG+=qtquickcompiler"
              Project ERROR: C:/Qt/qt-everywhere-src-5.14.0/qtbase/src/qtftp/examples/qftp/qftp.pro installs target to unexpected location.
              mingw32-make[1]: *** [Makefile:43: sub-qftp-qmake_all] Error 3
              mingw32-make[1]: Leaving directory 'C:/Qt/qt-everywhere-src-5.14.0/qtbase/src/build-qtftp-Desktop_Qt_5_14_0_MinGW_32_bit-Release/examples'
              mingw32-make: *** [C:/Qt/qt-everywhere-src-5.14.0/qtbase/src/build-qtftp-Desktop_Qt_5_14_0_MinGW_32_bit-Release/Makefile:71: sub-examples-qmake_all] Error 2
              

              i simply removed module_qtftp_examples
              I don't know if this is OK but now the compilation is running. And since they are only examples I think I should not have any problems.

              Cannot read C:/../../tests/auto/other/headersclean/headersclean.pri: No such file or directory
              

              i have no solution for this, but i don't know if my mistakes result from this.

              after compiling I only have the following files
              libQt5Ftp.a
              Qt5Ftp.dll
              Qt5Ftp.dll.debug

              but I still need
              libQt5Ftpd.a
              Qt5Ftpd.dll
              but they're not made, so can anyone help me?

              mrjjM 1 Reply Last reply
              0
              • D Dacown

                hi,
                doesn't fit 100% to the theme, but I have tried it according to the instructions, but with the Creator.
                The compilation works so far. However I have 3 problems:

                cd qftp\ && C:\Qt\5.14.0\mingw73_32\bin\qmake.exe -o Makefile C:\Qt\qt-everywhere-src-5.14.0\qtbase\src\qtftp\examples\qftp\qftp.pro -spec win32-g++ "CONFIG+=qtquickcompiler"
                Project ERROR: C:/Qt/qt-everywhere-src-5.14.0/qtbase/src/qtftp/examples/qftp/qftp.pro installs target to unexpected location.
                mingw32-make[1]: *** [Makefile:43: sub-qftp-qmake_all] Error 3
                mingw32-make[1]: Leaving directory 'C:/Qt/qt-everywhere-src-5.14.0/qtbase/src/build-qtftp-Desktop_Qt_5_14_0_MinGW_32_bit-Release/examples'
                mingw32-make: *** [C:/Qt/qt-everywhere-src-5.14.0/qtbase/src/build-qtftp-Desktop_Qt_5_14_0_MinGW_32_bit-Release/Makefile:71: sub-examples-qmake_all] Error 2
                

                i simply removed module_qtftp_examples
                I don't know if this is OK but now the compilation is running. And since they are only examples I think I should not have any problems.

                Cannot read C:/../../tests/auto/other/headersclean/headersclean.pri: No such file or directory
                

                i have no solution for this, but i don't know if my mistakes result from this.

                after compiling I only have the following files
                libQt5Ftp.a
                Qt5Ftp.dll
                Qt5Ftp.dll.debug

                but I still need
                libQt5Ftpd.a
                Qt5Ftpd.dll
                but they're not made, so can anyone help me?

                mrjjM Offline
                mrjjM Offline
                mrjj
                Lifetime Qt Champion
                wrote on last edited by
                #17

                @Dacown
                Hi
                The names with d in the end - is normally the debug versions and
                you are building in release mode so why you think you also need them ?
                For debugging ?
                Try build in debug mode and see.

                1 Reply Last reply
                1
                • D Offline
                  D Offline
                  Dacown
                  wrote on last edited by
                  #18

                  Hi,
                  yes i think i need it for debugging, is that wrong ?
                  OK i will try it.

                  1 Reply Last reply
                  0
                  • D Offline
                    D Offline
                    Dacown
                    wrote on last edited by
                    #19

                    OK,
                    i just tried it:

                    C:/Qt/Tools/mingw730_32/bin/../lib/gcc/i686-w64-mingw32/7.3.0/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lQt5Ftpd
                    collect2.exe: error: ld returned 1 exit status

                    mrjjM 1 Reply Last reply
                    0
                    • D Dacown

                      OK,
                      i just tried it:

                      C:/Qt/Tools/mingw730_32/bin/../lib/gcc/i686-w64-mingw32/7.3.0/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lQt5Ftpd
                      collect2.exe: error: ld returned 1 exit status

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #20

                      @Dacown
                      Hi
                      Did you build both things in Debug then ?

                      1 Reply Last reply
                      0
                      • D Offline
                        D Offline
                        Dacown
                        wrote on last edited by Dacown
                        #21

                        @mrjj
                        I have compiled the QFtp once in release mode and once in debug mode.
                        I only got the files in each case:
                        libQt5Ftp.a
                        Qt5Ftp.dll

                        C:/Qt/Tools/mingw730_32/bin/../lib/gcc/i686-w64-mingw32/7.3.0/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lQt5Ftpd
                        collect2.exe: error: ld returned 1 exit status
                        

                        the error i get now is from a project that was running with QFtp before. i have now installed the latest QT version and wanted to include QFTP there again so i can continue using the project.
                        I have tried to compile this project in debug modus

                        mrjjM 1 Reply Last reply
                        0
                        • D Dacown

                          @mrjj
                          I have compiled the QFtp once in release mode and once in debug mode.
                          I only got the files in each case:
                          libQt5Ftp.a
                          Qt5Ftp.dll

                          C:/Qt/Tools/mingw730_32/bin/../lib/gcc/i686-w64-mingw32/7.3.0/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lQt5Ftpd
                          collect2.exe: error: ld returned 1 exit status
                          

                          the error i get now is from a project that was running with QFtp before. i have now installed the latest QT version and wanted to include QFTP there again so i can continue using the project.
                          I have tried to compile this project in debug modus

                          mrjjM Offline
                          mrjjM Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on last edited by
                          #22

                          @Dacown

                          You get this error when you try to use the Qt5Ftp from your app right ?

                          1 Reply Last reply
                          0
                          • D Offline
                            D Offline
                            Dacown
                            wrote on last edited by Dacown
                            #23

                            @mrjj
                            yes if i try to compile it.

                            I have tried now to compile QFTP on a other system.
                            There it works i get the 4 files.

                            Now i have test to compile my project on this machine, i have the same error.

                            mrjjM 1 Reply Last reply
                            0
                            • D Dacown

                              @mrjj
                              yes if i try to compile it.

                              I have tried now to compile QFTP on a other system.
                              There it works i get the 4 files.

                              Now i have test to compile my project on this machine, i have the same error.

                              mrjjM Offline
                              mrjjM Offline
                              mrjj
                              Lifetime Qt Champion
                              wrote on last edited by
                              #24

                              @Dacown
                              ok but if you get the dlls then
                              just make sure you use the right version
                              for the app.
                              Release DLL for Release App
                              and Debug Dll ( d in name) for Debug App
                              Dont mix it.

                              Also make sure the path you add to your pro file matches where you put the dll.

                              1 Reply Last reply
                              0
                              • M Offline
                                M Offline
                                MEMekaniske
                                wrote on last edited by
                                #25

                                Have been trying to get QFtp to work myself for 2 days now, think I'll just go back to the stoneage for this one app and use a very old qt with FTP..

                                Have been doing amazing things with Qt.. from 3D to automation control and sensing, but this one library will have me going nuts if I don't stop trying...

                                Thumbs up to everyone being able to get a usable lib out of this :)

                                1 Reply Last reply
                                0
                                • SGaistS Offline
                                  SGaistS Offline
                                  SGaist
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #26

                                  Hi and welcome to devnet,

                                  What issues are you getting ?

                                  Interested in AI ? www.idiap.ch
                                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                  M 1 Reply Last reply
                                  1
                                  • SGaistS SGaist

                                    Hi and welcome to devnet,

                                    What issues are you getting ?

                                    M Offline
                                    M Offline
                                    MEMekaniske
                                    wrote on last edited by MEMekaniske
                                    #27

                                    @SGaist

                                    Hello and thanks for the welcome :)

                                    First I had built a .lib with nmake and tried to include that, but i could not load any modules.
                                    Then I built a .a type lib, with mingw make and that would not let me load any modules either.

                                    I also added the qurlinfo and qftp cpp classes to my project but there was no change.
                                    So I gave up and removed all the linking in .pro etc.

                                    Today after seeing your post I included the .lib again, without removing the .a from the qtftp lib folder, also with the copied qurlinfo and qft in my project, now it actually seems to work when using it as release, the "d" libs have not been built(?).

                                    Only confirmation that I get that it might be working is this, maybe you can confirm if this only shows up if the modules/library are in working order or if they would show up anyway because of the included qurlinfo and qtftp classes?

                                    Code:

                                    QFtp ftp;
                                           ftp.connectToHost("ftp.host.no");
                                           ftp.login("username","pass");
                                           qDebug() << "Ftp:";
                                           qDebug() << ftp.state();
                                           qDebug() << ";FTP";
                                           ftp.close();
                                    

                                    Result

                                    Ftp:
                                    0
                                    ;FTP
                                    QIODevice::write (QTcpSocket, "QFtpPI_socket"): device not open
                                    

                                    If I add Qt +=ftp to .pro
                                    then it cannot find the module.

                                    Thanks

                                    ------- Edit -----

                                    I was tempted to try again, I ran qmake, mingw32-make and install, then did the changes in .pro with @ config, and ran make again,
                                    it has now provided dlls too. I add the library to my project with qt creator then i added ftp to my .pro, and that did not produce any fail, but it will only let me load QtFtp/QtFtpDepends?

                                    Also, only other change i have done other then adding @ at start and end of config, is when I had an error:
                                    fatal error: QtFtp/qurlinfo.h: No such file or directory
                                    #include <QtFtp/qurlinfo.h>

                                    when running the first make, so I went into src/qftp and changed in qftp.h
                                    #include <QtFtp/qurlinfo.h> to #include <qurlinfo.h> which solved it.
                                    don't know if it should have found another file which is in the mislocated folder QtFtp?

                                    if it is of any relevance, this is the qtftp I've downloaded https://github.com/qt/qtftp

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                                    • SGaistS Offline
                                      SGaistS Offline
                                      SGaist
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #28

                                      Did you ran make install after building ?

                                      Interested in AI ? www.idiap.ch
                                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                      M 1 Reply Last reply
                                      1
                                      • SGaistS SGaist

                                        Did you ran make install after building ?

                                        M Offline
                                        M Offline
                                        MEMekaniske
                                        wrote on last edited by MEMekaniske
                                        #29

                                        @SGaist

                                        yes i did,

                                        mingw32-make install
                                        cd src\ && ( if not exist Makefile I:\Qt\5.14.0\mingw73_64\bin\qmake.exe -o Makefile C:\Users\k\Downloads\qtftp-mas\qtftp\src\src.pro ) && mingw32-make -f Makefile install
                                        mingw32-make[1]: Entering directory 'C:/Users/k/Downloads/qtftp-mas/qtftp/src'
                                        cd qftp\ && ( if not exist Makefile I:\Qt\5.14.0\mingw73_64\bin\qmake.exe -o Makefile C:\Users\k\Downloads\qtftp-mas\qtftp\src\qftp\qftp.pro ) && mingw32-make -f Makefile install
                                        mingw32-make[2]: Entering directory 'C:/Users/k/Downloads/qtftp-mas/qtftp/src/qftp'
                                        copy /y ....\lib\Qt5Ftp.dll I:\Qt\5.14.0\mingw73_64\bin\Qt5Ftp.dll
                                        1 file(s) copied.
                                        I:\Qt\5.14.0\mingw73_64\bin\qmake.exe -install sed -e "s,C:/Users/k/Downloads/qtftp-mas/qtftp/lib,I:/Qt/5.14.0/mingw73_64/lib,g" -e "s,C:\\Users\\k\\Downloads\\qtftp-mas\\qtftp\\lib,I:\\Qt\\5.14.0\\mingw73_64\\lib,gi" ....\lib\pkgconfig\Qt5Ftp.pc > I:\Qt\5.14.0\mingw73_64\lib\pkgconfig\Qt5Ftp.pc
                                        copy /y ....\lib\libQt5Ftp.a I:\Qt\5.14.0\mingw73_64\lib\libQt5Ftp.a
                                        1 file(s) copied.
                                        I:\Qt\5.14.0\mingw73_64\bin\qmake.exe -install qinstall C:\Users\k\Downloads\qtftp-mas\qtftp\include\QtFtp\QtFtpDepends I:\Qt\5.14.0\mingw73_64\include\QtFtp\QtFtpDepends
                                        I:\Qt\5.14.0\mingw73_64\bin\qmake.exe -install qinstall C:\Users\k\Downloads\qtftp-mas\qtftp\mkspecs\modules-inst\qt_lib_ftp.pri I:\Qt\5.14.0\mingw73_64\mkspecs\modules\qt_lib_ftp.pri
                                        I:\Qt\5.14.0\mingw73_64\bin\qmake.exe -install qinstall C:\Users\k\Downloads\qtftp-mas\qtftp\mkspecs\modules-inst\qt_lib_ftp_private.pri I:\Qt\5.14.0\mingw73_64\mkspecs\modules\qt_lib_ftp_private.pri
                                        I:\Qt\5.14.0\mingw73_64\bin\qmake.exe -install qinstall C:\Users\k\Downloads\qtftp-mas\qtftp\lib\cmake\Qt5Ftp\Qt5FtpConfig.cmake I:\Qt\5.14.0\mingw73_64\lib\cmake\Qt5Ftp\Qt5FtpConfig.cmake
                                        I:\Qt\5.14.0\mingw73_64\bin\qmake.exe -install qinstall C:\Users\k\Downloads\qtftp-mas\qtftp\lib\cmake\Qt5Ftp\Qt5FtpConfigVersion.cmake I:\Qt\5.14.0\mingw73_64\lib\cmake\Qt5Ftp\Qt5FtpConfigVersion.cmake
                                        mingw32-make[2]: Leaving directory 'C:/Users/k/Downloads/qtftp-mas/qtftp/src/qftp'
                                        mingw32-make[1]: Leaving directory 'C:/Users/k/Downloads/qtftp-mas/qtftp/src'

                                        the resulting lib files i get is these

                                        libQt5Ftp.a
                                        Qt5Ftp.dll
                                        Qt5Ftp.dll.debug
                                        Qt5Ftp.prl

                                        .a is the one i link to, qt creator then adds this to the my project file

                                        win32:CONFIG(release, debug|release): LIBS += -LC:/Users/k/Downloads/qtftp-mas/qtftp/lib/ -lQt5Ftp
                                        else:win32:CONFIG(debug, debug|release): LIBS += -LC:/Users/k/Downloads/qtftp-mas/qtftp/lib/ -lQt5Ftpd
                                        else:unix: LIBS += -LC:/Users/k/Downloads/qtftp-mas/qtftp/lib/ -lQt5Ftp

                                        INCLUDEPATH += C:/Users/k/Downloads/qtftp-mas/qtftp
                                        DEPENDPATH += C:/Users/k/Downloads/qtftp-mas/qtftp

                                        edit/addon;
                                        exact process was;
                                        opening the qt 5.14 mingw command terminal

                                        then to run qmake, which creates the stash file.
                                        then i run mingw32-make after removing QtFtp/ from the include line in qftp.h,
                                        then i added @ before and after config in pro and built again (if not, there is no dlls built?)
                                        then i run the mingw32-make install
                                        then i add the library to my project via qt creator
                                        then ftp to Qt += in the .pro file (qt creator does not show any missing lib after project read anymore, so something is working)
                                        but still cannot find anything else then QtFtp\QtFtpDepends

                                        and if I add the qftp and qurlinfo to my project too, then i can load the QFtp class but not use it for anything it just gives me the debug:
                                        QIODevice::write (QTcpSocket, "QFtpPI_socket"): device not open
                                        and the state "0"

                                        anyway, I think that if it was actually loading all the QFtp modules then I would not need to have qftp and qurlinfo in my project folder, just have the link to the lib?... any idea?

                                        Glad that I still qualify for the indie package, because paying 5000$ each year to not even get a library or package installer is a pretty sick price... Was going to solve my problem with FTP not being availiable with just regular accessmanager put/get and use mysql for the "directory" listings, but turns out mysql is not availiable either... so only option seems to be having another computer/mcu running as a server with sqlite and then send & retrive the commands with udp/tcp.. which works, but is a pain and not efficient..

                                        Finally managed to get mysql working, so i can use that for handling directory and qurl and networkaccess to do the down&uploads.
                                        If someone feels like writing a up to date step by step for idiots manual on building the qftp lib i would be very happy..

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