4. [SOLVED] Qt 5.0.0 built with VS2012 : app exe doesn't run when outside Qt Creator

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[SOLVED] Qt 5.0.0 built with VS2012 : app exe doesn't run when outside Qt Creator


  • I have Qt 5.0.0 that I built with VS2012 successfully.

    My applications (projects) executes normally when compiled+run inside Qt Creator (2.6.0) but when I execute the exe files outside, it doesn't.

    Compilation doesn't throw any errors plus running the apps outside Qt Creator doesn't pop-up any dialog boxes about any error.
    ... or simply "NOTHING HAPPENS"

    I added all the DLLs it need together with the exe and it isnt working. I used dependency walker to check but everything is satisfied.

    Any help? thanks!

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  • Moderators

    You need to copy windows QPA plugin to <your app dir>/plugins/platforms. The plugin (qwindows.dll) can be found in your Qt installation folder (qtbase/plugins/platforms).

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  • Dear sierdzio,

    I followed your instructions but it still doesn't work:

    My app directory contains the following

    • app.exe
    • libGLESv2.dll
    • Qt5Core.dll
    • Qt5Gui.dll
    • Qt5Widgets.dll
    • plugins (folder)
      ** platforms (folder)
      *** qwindows.dll
      *** qminimal.dll

    I did the same with the debug build and this time a messageBox popped-up:

    bq. Debug Error!
    Program: <project_path>\debug\Qt5Cored.dll
    Module: 5.0.0
    File: kernel\qguiapplication.cpp
    Line: 780
    Failed to load platform plugin "windows". Available platforms are:
    minimal
    windows

    I typed all what I saw in the messagebox. It has 3 buttons, abort, retry and ignore. All the buttons were "useless" since app terminates. Maybe this can help. Thanks.

    PS: Still runs inside Qt Creator.... I think I am just missing something

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  • Moderators

    "platforms" should be directly on the level of your app, not in the "plugins" directory.

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  • [quote author="Krzysztof Kawa" date="1357925061"]"platforms" should be directly on the level of your app, not in the "plugins" directory.[/quote]

    I also did that and failed. Same message popped-up but the words "windows" and "minimal" are repeated like this:

    bq. minimal
    windows
    minimal
    windows

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  • works now!

    copying libEGL.dll or *libEGLd.dll into the app directory is also needed

    too bad the app doesn't pop-up any messages that it is needed!

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  • You might want to read this:

    http://qt-project.org/doc/qt-5.0/qtdoc/deployment-windows.html

    helped me a lot!

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  • Thank you!! It works indeed after libEGL.dll got copied.

    [quote author="Code_ReaQtor" date="1358250411"]works now!

    copying libEGL.dll or *libEGLd.dll into the app directory is also needed

    too bad the app doesn't pop-up any messages that it is needed![/quote]

    Indeed! That's what I expected too.

    Cheers

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