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Qt5 platforms plugins ?

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  • C Offline
    C Offline
    Code_ReaQtor
    wrote on last edited by
    #16

    [quote author="soroush" date="1358092375"]Did you set QT_PLUGIN_PATH environment variable ? [/quote]

    NO....

    Please visit my open-source projects at https://github.com/Code-ReaQtor.

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    • P Offline
      P Offline
      Peppy
      wrote on last edited by
      #17

      Well, in my case, I have been using only the correct libraries, whether I have been building Qt (MSVC 2012) or using downloaded installation of Qt (MSVC 2010).

      I dont have Qt in PATH. Seems like to be a very strange DLL Hell problem...

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      • P Offline
        P Offline
        Peppy
        wrote on last edited by
        #18

        [quote author="JKSH" date="1358040589"]Very strange. Some questions:

        I presume it says Failed to load platform plugin "windows"., and not another plugin; is that correct?

        What's your OS? What many bits?

        Did you download the precompiled Qt 5.0.0, or build it yourself?

        Is Qt 5 in your PATH?

        Did you copy the other DLLs (e.g. Qt5Core.dll) into your application folder?[/quote]

        Yes you are right. But it says that plugins are available... I really dont understand what is going on...

        • Windows 7 Professional x64 bit.
        • I have been using both of them but not at once.
        • Qt is not in my environment
        • Yes, I did.
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        • JKSHJ Online
          JKSHJ Online
          JKSH
          Moderators
          wrote on last edited by
          #19

          I'm quite lost here, to be honest. :-/

          Try running your program from within CDB -- it will show you a list of DLLs that are being loaded, and it just might provide a clue.

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

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          • P Offline
            P Offline
            Peppy
            wrote on last edited by
            #20

            Well, I have dumped the library paths but the only one was:
            @C:/Qt/5.0.0/msvc2010/plugins@

            What makes no sense...

            When I run it from QtCreator, it works, but not as a stand-alone...

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            • P Offline
              P Offline
              Peppy
              wrote on last edited by
              #21

              Well, I have found solution in copying also libEGL.dll or libEGLd.dll (depends on what type of building do you run!) into the root application library...what a freaking mistake!

              Thanks to: http://qt-project.org/forums/viewthread/21269

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              • C Offline
                C Offline
                Code_ReaQtor
                wrote on last edited by
                #22

                [quote author="Peppy" date="1358179576"]Well, I have found solution in copying also libEGL.dll or libEGLd.dll (depends on what type of building do you run!) into the root application library...what a freaking mistake!

                Thanks to: http://qt-project.org/forums/viewthread/21269[/quote]

                Wow! Mine worked too! Thanks

                Please visit my open-source projects at https://github.com/Code-ReaQtor.

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                • G Offline
                  G Offline
                  goblincoding
                  wrote on last edited by
                  #23

                  Solved it for me as well.

                  http://www.goblincoding.com

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                  • H Offline
                    H Offline
                    hybridmajik
                    wrote on last edited by
                    #24

                    Just wanted to say I had this issue as well. Solve for me. Found through google so I figured I'd bump it.

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                    • I Offline
                      I Offline
                      ivaneck
                      wrote on last edited by
                      #25

                      copy the qwindows.dll from qtdir/plugins/platform to your application_directory/platform and voila it solves the problem.

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                      • M Offline
                        M Offline
                        magicbretzel
                        wrote on last edited by
                        #26

                        Adding libEGL.dll worked for me too. Was long for me to find the solution so I figured I'd bump it too.

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                        • P Offline
                          P Offline
                          Ph0t0n
                          wrote on last edited by
                          #27

                          I was getting that exact same "failed to load" error, however, I didn't compile my own binaries - I used the ones from the softwareforge project qt-x64 : http://sourceforge.net/projects/qtx64/ .

                          It turns out that they bundle a utility in there called qtbinpatcher.exe that patches the binaries where the paths have been hardcoded in. Once I ran that everything worked.

                          Is it just me, or does hardcoding an absolute path into the binaries like that seem like horrible idea? What were they thinking?

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                          • JKSHJ Online
                            JKSHJ Online
                            JKSH
                            Moderators
                            wrote on last edited by
                            #28

                            [quote author="Ph0t0n" date="1392352947"]I was getting that exact same "failed to load" error, however, I didn't compile my own binaries - I used the ones from the softwareforge project qt-x64 : http://sourceforge.net/projects/qtx64/ .

                            It turns out that they bundle a utility in there called qtbinpatcher.exe that patches the binaries where the paths have been hardcoded in. Once I ran that everything worked.

                            Is it just me, or does hardcoding an absolute path into the binaries like that seem like horrible idea? What were they thinking?[/quote]I agree that it is a horrible idea. Unfortunately, it's not something that's easy to undo -- so we'll have to deal with it for now.

                            Anyway, welcome to the Qt Dev Net! I'm glad you found a solution to your problem. Thank you for sharing your solution.

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

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