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Qt5 platforms plugins ?

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  • C Offline
    C Offline
    Code_ReaQtor
    wrote on last edited by
    #14

    @JKSH
    Can't do with VS2010, I have problems installing VS2010 in my computer since it won't compile even an ordinary VS2010 app. Got errors like "oldnames.lib" something errors. Found out header files weren't installed. Tried and tried but never solved it ... even the M$ forum can't help... so I removed it. Only have VS2008 and VS2012 on my machine.

    But for the mingw, I think I will take a look at that since mingw is ok with my machine. Thanks

    @Krzysztof
    I will recheck dependency walker. Thanks

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

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    • S Offline
      S Offline
      soroush
      wrote on last edited by
      #15

      Did you set QT_PLUGIN_PATH environment variable ?

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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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