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  4. this application failed to start because it could not find or load the qt platform plugin "windows"
Forum Update on Monday, May 27th 2025

this application failed to start because it could not find or load the qt platform plugin "windows"

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  • Z Offline
    Z Offline
    Zigjaz
    wrote on last edited by Zigjaz
    #1

    Hi guys,

    I'm actually working on QT5.7 and have this error :
    this application failed to start because it could not find or load the qt platform plugin "windows"
    in "".

    I tried all the answer i could find on other forums but none worked (the solutions were for previous versions)

    The thing is, when i launch the .exe from the computer that generated it, it's working but if i change computer i have this error... Can someone help me for this i cant find a relevant solution.

    i'm on win 7 x64bit and the destination computers too.
    Compiler Visual studio c++ 2013

    I already tried to include platforms\qwindows.dll in my .exe location

    thanks for reading this topic,
    Zigjaz

    jsulmJ 1 Reply Last reply
    0
    • Z Zigjaz

      Hi guys,

      I'm actually working on QT5.7 and have this error :
      this application failed to start because it could not find or load the qt platform plugin "windows"
      in "".

      I tried all the answer i could find on other forums but none worked (the solutions were for previous versions)

      The thing is, when i launch the .exe from the computer that generated it, it's working but if i change computer i have this error... Can someone help me for this i cant find a relevant solution.

      i'm on win 7 x64bit and the destination computers too.
      Compiler Visual studio c++ 2013

      I already tried to include platforms\qwindows.dll in my .exe location

      thanks for reading this topic,
      Zigjaz

      jsulmJ Offline
      jsulmJ Offline
      jsulm
      Lifetime Qt Champion
      wrote on last edited by
      #2

      @Zigjaz Please take a look at http://doc.qt.io/qt-5/windows-deployment.html
      Use Windows Deployment Tool to properly deploy your app for Windows.

      https://forum.qt.io/topic/113070/qt-code-of-conduct

      1 Reply Last reply
      0
      • Z Offline
        Z Offline
        Zigjaz
        wrote on last edited by Zigjaz
        #3

        ah thanks i missed one step when i first read this tuto... but now i have graphical driver errors:

        http://hpics.li/6635ff0

        i tried to set the libraries in the launch folder but it's still displyaing this

        jsulmJ 1 Reply Last reply
        0
        • Z Zigjaz

          ah thanks i missed one step when i first read this tuto... but now i have graphical driver errors:

          http://hpics.li/6635ff0

          i tried to set the libraries in the launch folder but it's still displyaing this

          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #4

          @Zigjaz You could try to update graphics driver on that machine

          https://forum.qt.io/topic/113070/qt-code-of-conduct

          1 Reply Last reply
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