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Qt Linux Deployment

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  • S Offline
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    shahriar25
    wrote on last edited by
    #4

    Hi @JKSH
    I wanted to try your way but I couldn't find the libqxcb.so. I mean it is in: path/to/qt/plugins/platforms but it's size is 10 KB!!! and the apps won't run without it. what should I do?

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    • S shahriar25

      Hi @JKSH
      I wanted to try your way but I couldn't find the libqxcb.so. I mean it is in: path/to/qt/plugins/platforms but it's size is 10 KB!!! and the apps won't run without it. what should I do?

      K Offline
      K Offline
      KeithS
      wrote on last edited by
      #5

      @shahriar25

      Did you read the tripleboot.org blog? That describes how to deploy Qt apps and in particular how to deploy the Qt plugins such as libqxcb.so.

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      • S Offline
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        shahriar25
        wrote on last edited by
        #6

        Hi @KeithS
        my problem is that my libqxcb.so is 10 KB instead of 1.3 MB ! I have installed Qt with the .run file to the default path. what am I doing wrong?

        K JKSHJ 2 Replies Last reply
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        • S shahriar25

          Hi @KeithS
          my problem is that my libqxcb.so is 10 KB instead of 1.3 MB ! I have installed Qt with the .run file to the default path. what am I doing wrong?

          K Offline
          K Offline
          KeithS
          wrote on last edited by
          #7

          @shahriar25

          That sounds about right:

          -rwxr-xr-x 1 root root 10752 Feb 25 09:39 libqxcb.so

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          • S shahriar25

            Hi @KeithS
            my problem is that my libqxcb.so is 10 KB instead of 1.3 MB ! I have installed Qt with the .run file to the default path. what am I doing wrong?

            JKSHJ Offline
            JKSHJ Offline
            JKSH
            Moderators
            wrote on last edited by
            #8

            @shahriar25 said:

            my problem is that my libqxcb.so is 10 KB instead of 1.3 MB !

            That's not a problem.

            libqxcb.so was 1.3 MB in Qt 5.3, but reduced to 10 KB in Qt 5.5.

            Qt Doc Search for browsers: forum.qt.io/topic/35616/web-browser-extension-for-improved-doc-searches

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            • S Offline
              S Offline
              shahriar25
              wrote on last edited by
              #9

              Hi @JKSH @KeithS thank you both
              It worked you were right I had the right file. but how ever I got another problem when I ran the executable from terminal:

              cannot mix incompatible Qt library ( version 0x50500 ) with this library ( version 0x50501 )

              what is this problem? how do I fix it? thanks in advance

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              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #10

                Hi,

                Do you have 5.5.1 installed on your system ? What distribution are you using ?

                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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                • S Offline
                  S Offline
                  shahriar25
                  wrote on last edited by shahriar25
                  #11

                  Hi @SGaist
                  well I do have 5.5.1 installed on my fedora but I wanted to test deploying qt programs with shared library so I tested it on a live fedora with gnome.
                  the thing is that I don't have qt 5.5 anywhere I only have 5.5.1 and 5.6 beta!

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

                    What version does the live fedora provide ?

                    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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                    • S Offline
                      S Offline
                      shahriar25
                      wrote on last edited by
                      #13

                      well the qt is not installed on it and it is fedora 23 with gnome UI

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                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #14

                        Are you sure Qt's not installed on it ? I don't mean the development environment but I'd be surprised that the libraries are not there at all.

                        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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                        • S Offline
                          S Offline
                          shahriar25
                          wrote on last edited by
                          #15

                          Hi @SGaist
                          Well I'm sure the qt IDE is not installed and also it's a live fedora I haven't installed it so it is the pure fedora. I don't know if qt libs are installed on it or not

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

                            Then run ldd your_application_name on that version of Fedora. You'll see if you have Qt available.

                            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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