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How to fix qt.qpa.plugin: Could not find the Qt platform plugin "windows" in "" error

Scheduled Pinned Locked Moved Unsolved Qt for Python
qt for pythonpython
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  • SGaistS SGaist

    I did not write about "virtual environments" but about "environment variable".

    G Offline
    G Offline
    Gokalp
    wrote on last edited by
    #5

    @SGaist I did what you said and got this message
    QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/GOKTUº ALKAN/AppData/Local/Programs/Python/Python310/platforms" ...
    qt.qpa.plugin: Could not find the Qt platform plugin "windows" in ""
    This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

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    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #6

      Hi,

      You should have had way more messages than that. There should be a full plugin dump.

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      G 1 Reply Last reply
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      • SGaistS SGaist

        Hi,

        You should have had way more messages than that. There should be a full plugin dump.

        G Offline
        G Offline
        Gokalp
        wrote on last edited by
        #7

        @SGaist Thats all i got. Maybe i'm doing something wrong? i used this: os.environ["QT_DEBUG_PLUGINS"] = "1"

        jsulmJ 1 Reply Last reply
        0
        • G Gokalp

          @SGaist Thats all i got. Maybe i'm doing something wrong? i used this: os.environ["QT_DEBUG_PLUGINS"] = "1"

          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #8

          @Gokalp said in How to fix qt.qpa.plugin: Could not find the Qt platform plugin "windows" in "" error:

          i used this: os.environ["QT_DEBUG_PLUGINS"] = "1"

          This is not going to work this way.
          Set it in a terminal and then start your app in this terminal.

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

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          • jsulmJ jsulm

            @Gokalp said in How to fix qt.qpa.plugin: Could not find the Qt platform plugin "windows" in "" error:

            i used this: os.environ["QT_DEBUG_PLUGINS"] = "1"

            This is not going to work this way.
            Set it in a terminal and then start your app in this terminal.

            G Offline
            G Offline
            Gokalp
            wrote on last edited by
            #9

            @jsulm said in How to fix qt.qpa.plugin: Could not find the Qt platform plugin "windows" in "" error:

            os.environ["QT_DEBUG_PLUGINS"] = "1"

            How can i set it in the terminal?

            jsulmJ 1 Reply Last reply
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            • G Gokalp

              @jsulm said in How to fix qt.qpa.plugin: Could not find the Qt platform plugin "windows" in "" error:

              os.environ["QT_DEBUG_PLUGINS"] = "1"

              How can i set it in the terminal?

              jsulmJ Offline
              jsulmJ Offline
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #10

              @Gokalp On Windows:

              set QT_DEBUG_PLUGINS=1
              

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

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              • jsulmJ jsulm

                @Gokalp On Windows:

                set QT_DEBUG_PLUGINS=1
                
                G Offline
                G Offline
                Gokalp
                wrote on last edited by
                #11

                @jsulm still the sameaa.PNG

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                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #12

                  Can you retry with an environment stored in a path without space or accented character ?

                  Interested in AI ? www.idiap.ch
                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                  G 1 Reply Last reply
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                  • SGaistS SGaist

                    Can you retry with an environment stored in a path without space or accented character ?

                    G Offline
                    G Offline
                    Gokalp
                    wrote on last edited by
                    #13

                    @SGaist How can i do that? My brother happened to be at home when this pc arrived so he made the username his name which contains Ö and Ğ characters... I tried to change the username several times but it never changed on the terminal so i really don't know what to do. Maybe there is another way that i can do what you're saying?

                    1 Reply Last reply
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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #14

                      Install your python environment in a folder starting from the root of your disk. For example "C:/Code/name_of_your_environment".

                      Interested in AI ? www.idiap.ch
                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                      G 1 Reply Last reply
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                      • SGaistS SGaist

                        Install your python environment in a folder starting from the root of your disk. For example "C:/Code/name_of_your_environment".

                        G Offline
                        G Offline
                        Gokalp
                        wrote on last edited by
                        #15

                        @SGaist Could you tell me how to do that? I have never used python that way since i didn't face any problems before

                        1 Reply Last reply
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                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #16

                          How did you install Python ?
                          How are you managing your virtual environments ?

                          Interested in AI ? www.idiap.ch
                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                          G 1 Reply Last reply
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                          • SGaistS SGaist

                            How did you install Python ?
                            How are you managing your virtual environments ?

                            G Offline
                            G Offline
                            Gokalp
                            wrote on last edited by
                            #17

                            @SGaist I have never messed with environments, i installed python from its site and used it globally. All of my modues are also installed globally.

                            jsulmJ 1 Reply Last reply
                            0
                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #18

                              Then I would recommend reconsidering that modus operandi.

                              Interested in AI ? www.idiap.ch
                              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                              • G Gokalp

                                @SGaist I have never messed with environments, i installed python from its site and used it globally. All of my modues are also installed globally.

                                jsulmJ Offline
                                jsulmJ Offline
                                jsulm
                                Lifetime Qt Champion
                                wrote on last edited by
                                #19

                                @Gokalp said in How to fix qt.qpa.plugin: Could not find the Qt platform plugin "windows" in "" error:

                                i installed python from its site

                                Which site?
                                Using Python installer from official Python website allows you to select the installation folder.

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

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                                • jsulmJ jsulm

                                  @Gokalp said in How to fix qt.qpa.plugin: Could not find the Qt platform plugin "windows" in "" error:

                                  i installed python from its site

                                  Which site?
                                  Using Python installer from official Python website allows you to select the installation folder.

                                  G Offline
                                  G Offline
                                  Gokalp
                                  wrote on last edited by
                                  #20

                                  @jsulm i installed it directly into the c folder

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                                  • SGaistS Offline
                                    SGaistS Offline
                                    SGaist
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #21

                                    So what happens now ?

                                    Interested in AI ? www.idiap.ch
                                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                    G 2 Replies Last reply
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                                    • SGaistS SGaist

                                      So what happens now ?

                                      G Offline
                                      G Offline
                                      Gokalp
                                      wrote on last edited by
                                      #22

                                      @SGaist Will create an venv as soon as i understand how to do it and post the results for the pyqt5 debug

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                                      • SGaistS SGaist

                                        So what happens now ?

                                        G Offline
                                        G Offline
                                        Gokalp
                                        wrote on last edited by
                                        #23

                                        @SGaist I created a venv under c:/ directly and it worked perfectly but i'm still confused why it worked on a computer named Göktuğ bu not on this computer named GÖTUĞ ALKAN while both have utf-8 characters in them

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                                        • SGaistS Offline
                                          SGaistS Offline
                                          SGaist
                                          Lifetime Qt Champion
                                          wrote on last edited by
                                          #24

                                          Might be the space in the path.

                                          Interested in AI ? www.idiap.ch
                                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                          1 Reply Last reply
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