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Could not find the Qt platform plugin "windows"

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  • D Offline
    D Offline
    Deathcomes
    wrote on last edited by
    #6

    Any ideas? If you want more details tell me.

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #7

      Please show some patience and allow at least 24 hours before bumping your own thread. This is a voluntary driven forum and people answering here might not live in the same time zone as you.

      Start your application with the QT_DEBUG_PLUGINS environment variable set to 1. It will log what happens with the plugin.

      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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      • SGaistS SGaist

        Please show some patience and allow at least 24 hours before bumping your own thread. This is a voluntary driven forum and people answering here might not live in the same time zone as you.

        Start your application with the QT_DEBUG_PLUGINS environment variable set to 1. It will log what happens with the plugin.

        D Offline
        D Offline
        Deathcomes
        wrote on last edited by
        #8

        @SGaist Thank you! Already done that!

        @Deathcomes said in Could not find the Qt platform plugin "windows":

        It prints this

        QFactoryLoader::QFactoryLoader() checking directory path "MY_PROJECT_PATH/release/platforms" ...
        

        Is there a way to change this? It should by default be "C:\Qt\5.12.1\mingw73_64\plugins" right?

        Is there a way to config this path? It should already be fine (tried it on other projects and it works ok (only difference is qt version)) but it seems not.

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        • B Offline
          B Offline
          Bonnie
          wrote on last edited by
          #9

          Have you put any other file to "MY_PROJECT_PATH/release" folder?
          What if you completely delete that folder and try again?

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          • D Offline
            D Offline
            Deathcomes
            wrote on last edited by
            #10

            @Bonnie I always leave that folder as it so that i don't "break" something. I will check it although!

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            • D Offline
              D Offline
              Deathcomes
              wrote on last edited by
              #11

              @Bonnie I checked it and the same thing happens.

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              • hskoglundH Offline
                hskoglundH Offline
                hskoglund
                wrote on last edited by
                #12

                Hi, if you try run another Qt project from inside Qt Creator, like one of Qt's examples, do you get the same error?

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                • hskoglundH hskoglund

                  Hi, if you try run another Qt project from inside Qt Creator, like one of Qt's examples, do you get the same error?

                  D Offline
                  D Offline
                  Deathcomes
                  wrote on last edited by Deathcomes
                  #13

                  @hskoglund Theoretically no because i have another project (although with Qt5.2.1) which compiles and runs (from inside Qt) perfectly.
                  Should i try to test with a new project with 5.12.1?

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                  • hskoglundH Offline
                    hskoglundH Offline
                    hskoglund
                    wrote on last edited by
                    #14

                    Yes, try an example project with 5.12.1.

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                    • hskoglundH hskoglund

                      Yes, try an example project with 5.12.1.

                      D Offline
                      D Offline
                      Deathcomes
                      wrote on last edited by
                      #15

                      @hskoglund Same thing happens with a new one.

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                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #16

                        Do you have other versions of Qt installed on your system ? For example by other applications ?

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

                        D 1 Reply Last reply
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                        • SGaistS SGaist

                          Do you have other versions of Qt installed on your system ? For example by other applications ?

                          D Offline
                          D Offline
                          Deathcomes
                          wrote on last edited by Deathcomes
                          #17

                          @SGaist Yes Qt 5.2.1 because i also maintain an older project.

                          These are my versions settings:

                          f2c3b887-8456-4b81-af93-59bc08422f13-image.png

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                          • SGaistS Offline
                            SGaistS Offline
                            SGaist
                            Lifetime Qt Champion
                            wrote on last edited by
                            #18

                            I meant: check your system for other Qt version that may have been installed along any of your applications.

                            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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                            • SGaistS SGaist

                              I meant: check your system for other Qt version that may have been installed along any of your applications.

                              D Offline
                              D Offline
                              Deathcomes
                              wrote on last edited by
                              #19

                              @SGaist Ow! Sorry! How do i check that?

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                              • SGaistS SGaist

                                I meant: check your system for other Qt version that may have been installed along any of your applications.

                                D Offline
                                D Offline
                                Deathcomes
                                wrote on last edited by Deathcomes
                                #20

                                @SGaist I searched but i didn't find any.

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                                • D Offline
                                  D Offline
                                  Deathcomes
                                  wrote on last edited by
                                  #21

                                  Should i reinstall Qt 5.12.1 to possibly correct the problem?

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                                  • SGaistS Offline
                                    SGaistS Offline
                                    SGaist
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #22

                                    You can try that yes.

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

                                    D 1 Reply Last reply
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                                    • SGaistS SGaist

                                      You can try that yes.

                                      D Offline
                                      D Offline
                                      Deathcomes
                                      wrote on last edited by
                                      #23

                                      @SGaist In what order should i install them in case the order is important? I repeat that i need Qt 5.2.1 and Qt 5.12.1.

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                                      • D Offline
                                        D Offline
                                        Deathcomes
                                        wrote on last edited by Deathcomes
                                        #24

                                        Reinstalling seems to have fixed the problem! Heck if i knew what was wrong! Can someone mark this issue as solved?

                                        EDIT: Sorry! I found out how to mark my thread as solved! Thanks again for the help!

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