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Qt5 platforms plugins ?

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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 Offline
        JKSHJ Offline
        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 Offline
                          JKSHJ Offline
                          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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