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Forum Update on Monday, May 27th 2025

Webengine example fail with "Unknown module(s) in QT: webengine"

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windows 7
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  • M magiclevinho

    @SGaist Yes I installed the for VS2013 and 2015 also. I'm also installed VS2015 application, but after the QT.

    M Offline
    M Offline
    magiclevinho
    wrote on last edited by magiclevinho
    #8

    @magiclevinho When I go to the Projects tab -> manage kits, then for the msvc 2015 it says no compiler set. How can I set a compiler?

    mrjjM 1 Reply Last reply
    0
    • M magiclevinho

      @magiclevinho When I go to the Projects tab -> manage kits, then for the msvc 2015 it says no compiler set. How can I set a compiler?

      mrjjM Offline
      mrjjM Offline
      mrjj
      Lifetime Qt Champion
      wrote on last edited by mrjj
      #9

      @magiclevinho

      • "C:\Qt\5.7\mingw53_32\bin"

      Just so we are very clear on this.
      The Qt Vs201X kits do NOT work with mingw.
      You must also download the full vs 2013 or 2015 COMPILER from microsoft
      and switch to that full compiler. So Besides the Qt kits, you should also have installed
      the actual compiler. as its not included same way as mingw kit.
      (its not allowed)

      M 1 Reply Last reply
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      • mrjjM mrjj

        @magiclevinho

        • "C:\Qt\5.7\mingw53_32\bin"

        Just so we are very clear on this.
        The Qt Vs201X kits do NOT work with mingw.
        You must also download the full vs 2013 or 2015 COMPILER from microsoft
        and switch to that full compiler. So Besides the Qt kits, you should also have installed
        the actual compiler. as its not included same way as mingw kit.
        (its not allowed)

        M Offline
        M Offline
        magiclevinho
        wrote on last edited by
        #10

        @mrjj Thanky for the reply! I had to make my first c++ project in VS 2015 and it installed the neccessary compiler!

        1 Reply Last reply
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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #11

          So you have it all working now ?

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

          1 Reply Last reply
          0
          • C Offline
            C Offline
            cdietz
            wrote on last edited by
            #12

            After some time I found this information, which does not seem to be published elsewhere:

            "MSVC2013 is not supported anymore in Qt WebEngine"
            Source: https://bugreports.qt.io/browse/QTBUG-56299

            And while I am at it (it took me some time to find this link):
            https://www.visualstudio.com/downloads/#visual-studio-community-2015-with-update-3-free

            P 1 Reply Last reply
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            • C cdietz

              After some time I found this information, which does not seem to be published elsewhere:

              "MSVC2013 is not supported anymore in Qt WebEngine"
              Source: https://bugreports.qt.io/browse/QTBUG-56299

              And while I am at it (it took me some time to find this link):
              https://www.visualstudio.com/downloads/#visual-studio-community-2015-with-update-3-free

              P Offline
              P Offline
              PSI_lbc
              wrote on last edited by
              #13

              Project ERROR: Unknown module(s) in QT: webenginewidgets

              Initial searching for a solution on the web shows this has been a problem for a number of years.

              QTBUG-43614 webenginewidgets examples does not build on Windows
              https://bugreports.qt.io/browse/QTBUG-43614
              QTBUG-44108 webenginewidgets examples does not build on Windows (second try)
              https://bugreports.qt.io/browse/QTBUG-44108

              Both of the above QTBUG items are marked as closed. Obviously they are not.

              Yes..I have QT += webenginewidgets set in the .pro file.

              Windows7 Pro SP1 32 bit OS. Creator4.2.0 Qt5.7.1. from this download..

              qt-opensource-windows-x86-mingw530-5.7.1

              The exact same project built on OSX using Creator4.2.0 Qt5.7.1. compiles and runs properly.

              Do I need to download and install BS compilers from Microsoft to get this to work? If so, do I need a different Qt download in order to use the MSBS compilers??

              Do I need to upgrade to a different OS..Win8 or Win10? Or Maybe Win7 Pro 64 bit??

              Is there a solution for Windows7 Pro SP1 32 bit OS??

              1 Reply Last reply
              0
              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #14

                The QtWebEngine platform notes explain what is needed to build the module.

                QtWebEngine is using the Chromium project as backend so it depends on what platform they support. If you would like to have a MinGW build of QtWebEngine then you should rather push this to the Chromium project.

                On a side note, there's @Konstantin-Tokarev QtWebKit reboot project that might interest you.

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

                P 1 Reply Last reply
                1
                • K Offline
                  K Offline
                  Konstantin Tokarev
                  wrote on last edited by
                  #15

                  Note that we provide QtWebKit TP5 binaries compatible with official Qt 5.8.0 MinGW build: https://github.com/annulen/webkit/releases/tag/qtwebkit-tp5

                  P 1 Reply Last reply
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                  • SGaistS SGaist

                    The QtWebEngine platform notes explain what is needed to build the module.

                    QtWebEngine is using the Chromium project as backend so it depends on what platform they support. If you would like to have a MinGW build of QtWebEngine then you should rather push this to the Chromium project.

                    On a side note, there's @Konstantin-Tokarev QtWebKit reboot project that might interest you.

                    P Offline
                    P Offline
                    PSI_lbc
                    wrote on last edited by
                    #16

                    @SGaist

                    Thx for the reply. I made a mistake downloading the open source install.
                    I am now using: qt-unified-windows-x86-2.0.5-online.exe...and have a current Commercial License for Application Development..all handheld and desktop environments are covered.

                    I tried installing Qt5.7.1 for MinGW but there were no QtWebEngine libraries.
                    I tried installing Qt5.7.1 for MSVC2015 and it had the QtWebEngine libraries, but no compiler.

                    I am now re-installing 5.8, 5.7, and 5.6. Maybe one of those will have the libraries I need.

                    P 1 Reply Last reply
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                    • K Konstantin Tokarev

                      Note that we provide QtWebKit TP5 binaries compatible with official Qt 5.8.0 MinGW build: https://github.com/annulen/webkit/releases/tag/qtwebkit-tp5

                      P Offline
                      P Offline
                      PSI_lbc
                      wrote on last edited by
                      #17

                      @Konstantin-Tokarev

                      Thx for the heads up.

                      Are the 5.8/Webkit binaries also available for MacOS-clang64 environments?

                      K 1 Reply Last reply
                      0
                      • P PSI_lbc

                        @Konstantin-Tokarev

                        Thx for the heads up.

                        Are the 5.8/Webkit binaries also available for MacOS-clang64 environments?

                        K Offline
                        K Offline
                        Konstantin Tokarev
                        wrote on last edited by
                        #18

                        @PSI_lbc Yeah, see the same link. Also there are binaries for 64-bit Linux and VS 2015 (both 32-bit and 64-bit)

                        mrjjM P 2 Replies Last reply
                        1
                        • K Konstantin Tokarev

                          @PSI_lbc Yeah, see the same link. Also there are binaries for 64-bit Linux and VS 2015 (both 32-bit and 64-bit)

                          mrjjM Offline
                          mrjjM Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on last edited by
                          #19

                          @Konstantin-Tokarev
                          Thank you for all your work. its a huge task for a beginner to build webkit so your project
                          is very welcome.

                          K 1 Reply Last reply
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                          • mrjjM mrjj

                            @Konstantin-Tokarev
                            Thank you for all your work. its a huge task for a beginner to build webkit so your project
                            is very welcome.

                            K Offline
                            K Offline
                            Konstantin Tokarev
                            wrote on last edited by
                            #20

                            @mrjj As for these binary packages, credits go to CI infrastructure of The Qt Company, and personally to Simon Hausmann who helped a lot with integration of new QtWebKit's build system into Coin.

                            Also credits go to Vitaly Slobodin and other contributors of revived QtWebKit, who contributed lots of patches enhancing Windows and macOS support. Without them, it could happen that only Linux would be supported.

                            1 Reply Last reply
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                            • P PSI_lbc

                              @SGaist

                              Thx for the reply. I made a mistake downloading the open source install.
                              I am now using: qt-unified-windows-x86-2.0.5-online.exe...and have a current Commercial License for Application Development..all handheld and desktop environments are covered.

                              I tried installing Qt5.7.1 for MinGW but there were no QtWebEngine libraries.
                              I tried installing Qt5.7.1 for MSVC2015 and it had the QtWebEngine libraries, but no compiler.

                              I am now re-installing 5.8, 5.7, and 5.6. Maybe one of those will have the libraries I need.

                              P Offline
                              P Offline
                              PSI_lbc
                              wrote on last edited by
                              #21

                              @PSI_lbc

                              Qt 5.7.1 Reference Documentation
                              Contents
                              Functions
                              Detailed Description
                              QtWebView Namespace
                              The QtWebView namespace provides functions that makes it easier to set-up and use the WebView. More...
                              Header:
                              #include <QtWebView>
                              qmake:
                              QT += webview

                              Docs say it's there but it isn't. This is after a fresh install of 5.8,5.7 MinGW53_32 and 5.6 MinGW49_32

                              K 1 Reply Last reply
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                              • K Konstantin Tokarev

                                @PSI_lbc Yeah, see the same link. Also there are binaries for 64-bit Linux and VS 2015 (both 32-bit and 64-bit)

                                P Offline
                                P Offline
                                PSI_lbc
                                wrote on last edited by
                                #22

                                @Konstantin-Tokarev

                                Do you know if the 5.8/Webkit binaries support a mix of HTML and JavaScript on the same page?

                                A real ancient version of WebKit I was using in Qt4.7.2 did not...which is what has prompted my attempted upgrade to Qt5x/WebEngine.

                                1 Reply Last reply
                                0
                                • SGaistS Offline
                                  SGaistS Offline
                                  SGaist
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #23

                                  Like written in the documentation I linked, QtWebEngine is not available with MinGW for the reason I have already given.

                                  As for Visual Studio, yes, it's up to you to install it. It has always been the case. Microsoft doesn't allow any third party to bundle its development suits.

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

                                  1 Reply Last reply
                                  0
                                  • P PSI_lbc

                                    @PSI_lbc

                                    Qt 5.7.1 Reference Documentation
                                    Contents
                                    Functions
                                    Detailed Description
                                    QtWebView Namespace
                                    The QtWebView namespace provides functions that makes it easier to set-up and use the WebView. More...
                                    Header:
                                    #include <QtWebView>
                                    qmake:
                                    QT += webview

                                    Docs say it's there but it isn't. This is after a fresh install of 5.8,5.7 MinGW53_32 and 5.6 MinGW49_32

                                    K Offline
                                    K Offline
                                    Konstantin Tokarev
                                    wrote on last edited by
                                    #24

                                    @PSI_lbc said in Windows 7 Webengine example fail with "Unknown module(s) in QT: webengine":

                                    Docs say it's there but it isn't. This is after a fresh install of 5.8,5.7 MinGW53_32 and 5.6 MinGW49_32

                                    You need to install Qt 5.8.0 and extract QtWebKit binaries that you can download from link that I've posted above.

                                    @PSI_lbc said in Windows 7 Webengine example fail with "Unknown module(s) in QT: webengine":

                                    Do you know if the 5.8/Webkit binaries support a mix of HTML and JavaScript on the same page?

                                    Of course, yes!

                                    1 Reply Last reply
                                    1
                                    • X Offline
                                      X Offline
                                      xeoshow
                                      wrote on last edited by
                                      #25

                                      Is there any stable binary release for qt 5.9.2 now?
                                      Thanks a lot!

                                      Best regards, Jason

                                      mrjjM 1 Reply Last reply
                                      0
                                      • X xeoshow

                                        Is there any stable binary release for qt 5.9.2 now?
                                        Thanks a lot!

                                        Best regards, Jason

                                        mrjjM Offline
                                        mrjjM Offline
                                        mrjj
                                        Lifetime Qt Champion
                                        wrote on last edited by
                                        #26

                                        @xeoshow
                                        Hi
                                        I think its still alpha
                                        https://github.com/annulen/webkit/releases

                                        1 Reply Last reply
                                        0
                                        • X Offline
                                          X Offline
                                          xeoshow
                                          wrote on last edited by
                                          #27

                                          @mrjj said in Windows 7 Webengine example fail with "Unknown module(s) in QT: webengine":

                                          @xeoshow
                                          Hi
                                          I think its still alpha
                                          https://github.com/annulen/webkit/releases

                                          I am still using the qt 5.5.1 mingw version, and using the default webview in that QT version. One BIG problem I met is memory leak seems still in qt 5.5.1 mingw version ...

                                          Is the memory leak problem resolved in the qtwebkit-tp5-qt58-mingw530-x86.zip or qtwebkit-5.212.0_alpha2-qt59-mingw530-x86.zip from https://github.com/annulen/webkit/releases ?

                                          K 1 Reply Last reply
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