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OMG. Why does it have to be so hard to install a QT runtime so that I can run QT software?

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  • T Offline
    T Offline
    Tom A
    wrote last edited by
    #1

    My god. I just downloaded some simple little software this afternoon that has a graphical interface that uses Qt.

    I have spent hours now, trying to find and install the necessary runtime platform so that this software will run. This has not been easy. Ridiculously difficult is how I would describe it, so far.

    When I launch the software, I get this message:

    "This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem."

    I ended up in Qt.io, and making an account so that I could download things. All the download choices would have given me downloads that were several Gb in size. For a simple runtime, surely the download should only have been a few hundred meg. I wasn't going to download anything that was > 1 Gb.

    Where are the downloads for people that just want to run an application they just downloaded? And where is the help for that group of people?

    Everything in Qt.io seems to be targetted at developers. What about the simple folk that have downloaded an application and just want to run it? The assistance for this group of people seems to be non-existent.

    My god. If you Qt people want your platform to become widely used, then you need to make it much, much easier for the simple folk that have simply downloaded an application and want to run it.

    Please help. I am running Windows 10. The application I want to run seems to use Qt5. No, I don't want to be a Qt developer.

    Thank you.

    Ronel_qtmasterR 1 Reply Last reply
    0
    • T Tom A

      My god. I just downloaded some simple little software this afternoon that has a graphical interface that uses Qt.

      I have spent hours now, trying to find and install the necessary runtime platform so that this software will run. This has not been easy. Ridiculously difficult is how I would describe it, so far.

      When I launch the software, I get this message:

      "This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem."

      I ended up in Qt.io, and making an account so that I could download things. All the download choices would have given me downloads that were several Gb in size. For a simple runtime, surely the download should only have been a few hundred meg. I wasn't going to download anything that was > 1 Gb.

      Where are the downloads for people that just want to run an application they just downloaded? And where is the help for that group of people?

      Everything in Qt.io seems to be targetted at developers. What about the simple folk that have downloaded an application and just want to run it? The assistance for this group of people seems to be non-existent.

      My god. If you Qt people want your platform to become widely used, then you need to make it much, much easier for the simple folk that have simply downloaded an application and want to run it.

      Please help. I am running Windows 10. The application I want to run seems to use Qt5. No, I don't want to be a Qt developer.

      Thank you.

      Ronel_qtmasterR Offline
      Ronel_qtmasterR Offline
      Ronel_qtmaster
      wrote last edited by
      #2

      @Tom-A Which platform are using to run your program? in fact that program is searching a folder called platforms, which is used when deploying qt applications for other targets. That folder generally comes with the Qt Installation. If you have qt installed, go inside the plugins folder and you will see the platform folder.Then copy it and to sour software and it shall work

      T 1 Reply Last reply
      0
      • Ronel_qtmasterR Ronel_qtmaster

        @Tom-A Which platform are using to run your program? in fact that program is searching a folder called platforms, which is used when deploying qt applications for other targets. That folder generally comes with the Qt Installation. If you have qt installed, go inside the plugins folder and you will see the platform folder.Then copy it and to sour software and it shall work

        T Offline
        T Offline
        Tom A
        wrote last edited by
        #3

        @Ronel_qtmaster Thanks, Ronel. I am running Windows 10.

        I have to "download Qt" onto my system? Do I get that from Qt.io? What exactly do I have to download, because everything from there seems to be targetted at developers. I don't have a lot of spare disk space so don't want to be downloading several gigabytes of developer stuff.

        I just have a simple little application that I downloaded and now want to run. That application uses Qt.

        Thanks,
        Tom

        Ronel_qtmasterR 1 Reply Last reply
        0
        • T Tom A

          @Ronel_qtmaster Thanks, Ronel. I am running Windows 10.

          I have to "download Qt" onto my system? Do I get that from Qt.io? What exactly do I have to download, because everything from there seems to be targetted at developers. I don't have a lot of spare disk space so don't want to be downloading several gigabytes of developer stuff.

          I just have a simple little application that I downloaded and now want to run. That application uses Qt.

          Thanks,
          Tom

          Ronel_qtmasterR Offline
          Ronel_qtmasterR Offline
          Ronel_qtmaster
          wrote last edited by
          #4

          @Tom-A You need the platform folder that comes with qt installation. That application requires it.That means the person who distributes the application did a wrong deployment. So you need the copy that folder inside your application folder. Do you know which version of Qt was used to build that software?

          1 Reply Last reply
          1
          • J Offline
            J Offline
            jimis
            wrote last edited by
            #5

            @Tom-A this message means that the program can't find the file qwindows.dll (or maybe qwindowsd.dll).
            It should be included in the package you downloaded, you can't just find it from a different source and put it there. It has to be part of the package.
            What software are you trying to run? Can you see what DLLs it installed?

            1 Reply Last reply
            1
            • T Offline
              T Offline
              Tom A
              wrote last edited by
              #6

              Ok, thanks all. Looks like the application I downloaded was broken. The distributor didn't include everything that would allow it to run on a basic system. Thanks to everybody for your answers.

              1 Reply Last reply
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              • T Tom A has marked this topic as solved

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