Still trying to Deploy... using windeployqt.exe



  • Hi,
    I have used windeployqt.exe to deploy my app.

    My probleme was, when i run my application nothing happends ... no error message. It is not visible in Process Explorer. It just doesn't run.
    -please see my previous 'Topic' : https://forum.qt.io/topic/87600/windeployqt-exe-vs-depends-exe : ~SOLVED

    Now, as added 2 or 3 mlissing dlls, my applications starts correctly !

    But i still have a probleme : it only starts correctly on my PC (where i have Qt install etc ...), if i copy my app to another PC, i still have not running application, no error message, nothing..

    Can someone help me please ?



  • @LeLev Have you checked Windows Event Viewer to see if any errors are reported there?

    I have had instances where Qt applications fail to start on other machines - usually, the solution comes from either installing Microsoft Visual C++ Runtime or ensuring that I have the platforms\qwindows.dll files in the application directory.



  • @webzoid Thx,I haven't thought about Windows Event Viewer.. , I will check then give you a feedback tomorrow.



  • @LeLev Which "2 or 3" dll's are missing then? are they always the same one or is a random thing?
    how do you run windeployqt and how do your build paths look in relation to it when you run it?
    As @LeLev says you may need to copy MVC runtime dll and any other stuff that windeployqt does not now about.



  • If I understand correctly, when you run the app on windows no error message or no UI comes. It means that your application is running and UI does not come up. Most probably Qt 'platforms' plugins could be missing in the new box. Just ensure that your copy these platforms plugin directory also.



  • Thank you for answers

    @webzoid unfortunately nothing interesting in Windows Event Viewer.

    @kenchan So with windeployqt.exe i had :

    bearer / iconengines / imageformats platforminputcontexts / platforms / qmltooling / styles / translations
    D3Dcompiler_47.dll / libEGL.dll / libgcc_s_dw2-1.dll / libGLESV2.dll / libstdc++-6.dll / libwinpthread-1.dll / opengl32sw.dll /Qt5Core.dll / Qt5Gui.dll / Qt5Network.dll / Qt5Qml.dll / Qt5Quick.dll / Qt5Svg.dll / Qt5Widgets.dll / myApp.exe

    With this my application was not running (and no error message ) even on my developpement pc

    I sorted, now i have :
    bearer / iconengines / imageformats platforminputcontexts / platforms / qmltooling / styles / translations
    libstdc++-6.dll / Qt5Core.dll / Qt5Gui.dll / Qt5Network.dll / Qt5Quick.dll / Qt5QuickControls2.dll /Qt5QuickTemplates2.dll / myApp.exe

    and now my app starts correctly, but only on my dev pc

    @dheerendra said in Still trying to Deploy... using windeployqt.exe:

    It means that your application is running and UI does not come up

    As i said application is not visible in Process Explorer, so is it possible ?
    and inside platforms there are : qwindows.dll/qwebgl.dll/qoffscreen.dll/qminimal.dll

    Thx



  • @LeLev have you tried running procmon with your app? it might give you a clue as what it is doing an when it dies.
    https://technet.microsoft.com/sysinternals/processmonitor.aspx



  • @kenchan THX.
    There are more than 1000 operations about my application when i run procmon and then try to run my app.

    Most of time result is SUCCESS

    But i have this :
    OPERATION : CreateFile
    PATH :C:\Users\lev\Desktop\winDep\QtQuick.2.8
    RESULT: NAME NOT FOUND Desired Access: Read
    OPERATION :CreateFile
    PATH : C:\Users\lev\Desktop\winDep\qml\QtQuick.2.8
    RESULT : PATH NOT FOUND Desired Access: Read Attributes
    OPERATION: CreateFile
    PATH : C:\Users\lev\Desktop\winDep\QtQuick.2 NAME NOT FOUND Desired Access: Read Attributes,
    OPERATION: CreateFile
    PATH : C:\Users\lev\Desktop\winDep\QtQuick\Window.2.2 PATH NOT FOUND

    I have PATH NOT FOUND on every Qt module and even my Classes

    in my code i have

    qmlRegisterType<ClientCN16K>("com.Meca.ua.cn16k",1,0,"MecaUAClient");
    qmlRegisterType<Machine>("com.Meca.ua.cn16k",1,0,"Machine");
    

    and procmon says :

    OPERATION : CreateFile
    PATH: C:\Users\lev\Desktop\winDep\com\Meca\ua\cn16k.1.0
    RESULT : PATH NOT FOUND Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

    OPERATION CreateFile
    PATH :C:\Users\lev\Desktop\winDep\com\Meca\ua\cn16k.1.0
    RESULT : ATH NOT FOUND Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

    OPERATION CreateFile
    PATH :C:\Users\lev\Desktop\winDep\com\Meca\ua.1.0\cn16k
    RESULT : PATH NOT FOUND Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

    ...



  • @LeLev I don't understand what all that refers to, but as long it gives you a clue :-)
    I have found procmon to be useful for things like this.



  • To add my 2 cent,

    Recently I had some issues with windeployqt turned out, that all needed files were copied, but from the wrong directory.

    I ended up replacing all files and folders manualy, than the application worked.



  • windeployqt helps but it isn't a solution.
    You should use qt.conf to setup where the qt app should search the plugins.
    If you need a plugin that requires a specia qt dll, windeployqt can't help you. If you are using qml, the qml subfolder has to be added manually.
    Please have a look at my qt apps, just to have an idea on how I share it.
    http://www.denisgottardello.it/QtComPort/index.php
    I normally add all the dlls and the plugins to prevent problems.



  • @mrdebug said in Still trying to Deploy... using windeployqt.exe:

    If you are using qml, the qml subfolder has to be added manually.

    Thx @mrdebug ! i just addes qml subfolder + qt.conf file
    http://www.tripleboot.org/?p=536 //nice article Here
    //qt.conf
    [Paths]
    Plugins=plugins

    Now its workink perfectly!

    Thank you very much everybody !


  • Lifetime Qt Champion

    Hi,

    Out of curiosity, which version of Qt and windeployqt are you using ?



  • @SGaist hello,
    Im using Qt 5.10.0 MinGW32bit2
    windeployqt 5.10.0.0

    Can someone tell me how to add 'Line number information' to get it in procmon please ?

    Thanks



  • @LeLev
    FYI, I found this tool quite useful when I first tried windeployqt:
    https://github.com/lucasg/Dependencies
    This is a modern, open source version of the now obsolete Dependency Walker.

    Just open your .exe file (the one in your deployment folder) in it.

    0_1518668671818_ebafae5e-b458-4226-a888-4c59da9ae13b-image.png

    It showed that I forgot to copy my fftw dlls to my deployment folder... and shows the other system dll's it requires.



  • @Diracsbracket Thx. I will check that tool.


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