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how to add library(qmqtt.h) in qmqtt client for windows

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  • S shravani

    @raven-worx
    hi,
    after building i came to know qmqtt.lib was created(5th line from last).but i could not find it inorder to add that path to .pro file.can u please tell by default where it will be stored? in build/debug also it is not present(see above post).

    thank you

    0_1498707021202_build_log.PNG

    raven-worxR Offline
    raven-worxR Offline
    raven-worx
    Moderators
    wrote on last edited by
    #26

    @shravani
    according to this log in the \bin directory.

    --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
    If you have a question please use the forum so others can benefit from the solution in the future

    S 1 Reply Last reply
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    • raven-worxR raven-worx

      @shravani
      according to this log in the \bin directory.

      S Offline
      S Offline
      shravani
      wrote on last edited by shravani
      #27

      @raven-worx
      thank you very much. now i added that .lib file to .pro file and build all is successful.but as the program start executing im getting this error while debugging.can u please look into it?
      i dont understand which dll file is missing and where to add it?

      0_1498793774462_Capture.PNG

      jsulmJ 1 Reply Last reply
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      • S shravani

        @raven-worx
        thank you very much. now i added that .lib file to .pro file and build all is successful.but as the program start executing im getting this error while debugging.can u please look into it?
        i dont understand which dll file is missing and where to add it?

        0_1498793774462_Capture.PNG

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #28

        @shravani How do you start the app? From QtCreator?
        On Windows you can use http://www.dependencywalker.com/ to find out which libraries an application needs.
        If you want to start your app outside of QtCreator then you first need to deploy it: http://doc.qt.io/qt-5/windows-deployment.html

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

        S 1 Reply Last reply
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        • jsulmJ jsulm

          @shravani How do you start the app? From QtCreator?
          On Windows you can use http://www.dependencywalker.com/ to find out which libraries an application needs.
          If you want to start your app outside of QtCreator then you first need to deploy it: http://doc.qt.io/qt-5/windows-deployment.html

          S Offline
          S Offline
          shravani
          wrote on last edited by
          #29

          @jsulm

          im running it in qtcreator, not outside.inside qt also do i need to include?

          jsulmJ 1 Reply Last reply
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          • S shravani

            @jsulm

            im running it in qtcreator, not outside.inside qt also do i need to include?

            jsulmJ Offline
            jsulmJ Offline
            jsulm
            Lifetime Qt Champion
            wrote on last edited by
            #30

            @shravani In QtCreator it should work. Use http://www.dependencywalker.com to see what is missing.
            Besides the lib file - do you have the DLL? Lib file is needed for linking, but DLL is needed at runtime.
            Also can you show how you added the lib to pro file?

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

            S 1 Reply Last reply
            1
            • jsulmJ jsulm

              @shravani In QtCreator it should work. Use http://www.dependencywalker.com to see what is missing.
              Besides the lib file - do you have the DLL? Lib file is needed for linking, but DLL is needed at runtime.
              Also can you show how you added the lib to pro file?

              S Offline
              S Offline
              shravani
              wrote on last edited by
              #31

              @jsulm
              in this src/ qmqtt.h,.. and .lib files are there.so added that path.

              INCLUDEPATH += C:\Qt\qmqtt-master\src
              LIBS += -LC:\Qt\qmqtt-master\src -lqmqtt

              jsulmJ 1 Reply Last reply
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              • S shravani

                @jsulm
                in this src/ qmqtt.h,.. and .lib files are there.so added that path.

                INCLUDEPATH += C:\Qt\qmqtt-master\src
                LIBS += -LC:\Qt\qmqtt-master\src -lqmqtt

                jsulmJ Offline
                jsulmJ Offline
                jsulm
                Lifetime Qt Champion
                wrote on last edited by
                #32

                @shravani
                Again: you need the DLL file to be able to execute your app. Where is qmqtt.dll (or libqmqtt.dll)?

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

                S 1 Reply Last reply
                1
                • jsulmJ jsulm

                  @shravani
                  Again: you need the DLL file to be able to execute your app. Where is qmqtt.dll (or libqmqtt.dll)?

                  S Offline
                  S Offline
                  shravani
                  wrote on last edited by shravani
                  #33

                  @jsulm
                  it is inside src only.do i need to add anywhere else again?
                  after building library it created in /bin so i copied from there to src folder

                  jsulmJ 1 Reply Last reply
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                  • S shravani

                    @jsulm
                    it is inside src only.do i need to add anywhere else again?
                    after building library it created in /bin so i copied from there to src folder

                    jsulmJ Offline
                    jsulmJ Offline
                    jsulm
                    Lifetime Qt Champion
                    wrote on last edited by
                    #34

                    @shravani The DLL must be in a directory where the operating system is looking for shared libraries when loading an app. Fastest way is to copy it to the build directory of your app (where your executable is).

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

                    S 2 Replies Last reply
                    2
                    • jsulmJ jsulm

                      @shravani The DLL must be in a directory where the operating system is looking for shared libraries when loading an app. Fastest way is to copy it to the build directory of your app (where your executable is).

                      S Offline
                      S Offline
                      shravani
                      wrote on last edited by
                      #35
                      This post is deleted!
                      1 Reply Last reply
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                      • jsulmJ jsulm

                        @shravani The DLL must be in a directory where the operating system is looking for shared libraries when loading an app. Fastest way is to copy it to the build directory of your app (where your executable is).

                        S Offline
                        S Offline
                        shravani
                        wrote on last edited by
                        #36

                        @jsulm
                        i added all dlls but now getting this error
                        0_1498976658348_error.png

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                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #37

                          Hi,

                          You can't start an application like that from explorer, you first have to follow the same steps you would before deploying your application on another computer.

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                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                          S 1 Reply Last reply
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                          • SGaistS SGaist

                            Hi,

                            You can't start an application like that from explorer, you first have to follow the same steps you would before deploying your application on another computer.

                            S Offline
                            S Offline
                            shravani
                            wrote on last edited by shravani
                            #38

                            @SGaist
                            In Qt creator also I'm getting same error after adding ucrtbased.dll to debug folder.
                            i tried executing examples given in qt but getting same error.
                            recently i installed this qt 5.8.1 msvc2015 new version because in qt 5.0 it(mqtt) is not working.

                            0_1499045791448_error2.png 0_1499045799223_path.png

                            jsulmJ 1 Reply Last reply
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                            • S shravani

                              @SGaist
                              In Qt creator also I'm getting same error after adding ucrtbased.dll to debug folder.
                              i tried executing examples given in qt but getting same error.
                              recently i installed this qt 5.8.1 msvc2015 new version because in qt 5.0 it(mqtt) is not working.

                              0_1499045791448_error2.png 0_1499045799223_path.png

                              jsulmJ Offline
                              jsulmJ Offline
                              jsulm
                              Lifetime Qt Champion
                              wrote on last edited by
                              #39

                              @shravani Which DLLs exactly did you copy and from where? No need to copy ucrtbased.dll when starting from QtCreator.

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

                              S 1 Reply Last reply
                              0
                              • jsulmJ jsulm

                                @shravani Which DLLs exactly did you copy and from where? No need to copy ucrtbased.dll when starting from QtCreator.

                                S Offline
                                S Offline
                                shravani
                                wrote on last edited by shravani
                                #40

                                @jsulm
                                but while running it showed ucrtbased.dll is missing)DLL not found as above post)

                                jsulmJ 1 Reply Last reply
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                                • S shravani

                                  @jsulm
                                  but while running it showed ucrtbased.dll is missing)DLL not found as above post)

                                  jsulmJ Offline
                                  jsulmJ Offline
                                  jsulm
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #41

                                  @shravani While running from QtCreator?

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

                                  S 1 Reply Last reply
                                  0
                                  • jsulmJ jsulm

                                    @shravani While running from QtCreator?

                                    S Offline
                                    S Offline
                                    shravani
                                    wrote on last edited by shravani
                                    #42

                                    @jsulm
                                    while running from qt creator(DLL not found)

                                    0_1499057065092_Capture.PNG
                                    so i checked from outside qt to see which dll missing.so i added that

                                    jsulmJ 1 Reply Last reply
                                    0
                                    • S shravani

                                      @jsulm
                                      while running from qt creator(DLL not found)

                                      0_1499057065092_Capture.PNG
                                      so i checked from outside qt to see which dll missing.so i added that

                                      jsulmJ Offline
                                      jsulmJ Offline
                                      jsulm
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #43

                                      @shravani Running outside from QtCreator is different. You actually only need to copy your qmqtt.dll if you want to run from QtCreator. If you want to run outside of QtCreator you need to deploy your app as @SGaist already said. In one of my previous posts in this thread I posted a link to a side where you can read how to deploy your app on Windows.

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

                                      S 1 Reply Last reply
                                      0
                                      • jsulmJ jsulm

                                        @shravani Running outside from QtCreator is different. You actually only need to copy your qmqtt.dll if you want to run from QtCreator. If you want to run outside of QtCreator you need to deploy your app as @SGaist already said. In one of my previous posts in this thread I posted a link to a side where you can read how to deploy your app on Windows.

                                        S Offline
                                        S Offline
                                        shravani
                                        wrote on last edited by shravani
                                        #44

                                        @jsulm
                                        i copied qmqtt.dll but still got that error (DLL not found).do i need to add anything else?

                                        jsulmJ 1 Reply Last reply
                                        0
                                        • S shravani

                                          @jsulm
                                          i copied qmqtt.dll but still got that error (DLL not found).do i need to add anything else?

                                          jsulmJ Offline
                                          jsulmJ Offline
                                          jsulm
                                          Lifetime Qt Champion
                                          wrote on last edited by
                                          #45

                                          @shravani After adding qmqtt.dll which DLL is missing?

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

                                          S 1 Reply Last reply
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