Installation and Deployment

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  Unsolved Registering type based on AVFMediaPlayerSession
  • Wiru

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  Currently I'm trying to make the custom build from source. I saw the Qt Documentation, but I think it's not informative enough. There is no info on how to build just one module without the whole QT, and the IOS part, I'm using Xcode v9.2 and there is no Download option under preferences . I found how to build just one module, but I wonder if it will work, since DRM lib requires an additional step with a finalize script, in the time of writing I'm still doing the modification parts so I'll see if it works later.

  If that wont work, has anyone ever tried making a native IOS player component, or how can I make a surface for AVPlayer?

  EDIT: the modified build seems to work correctly so far

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  Unsolved How to anti-aliasing SVG image in QML
  • canlx

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  @sierdzio No problem bro, thanks for your help.

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  Unsolved Configuration OpenCV for iOS
  • Discode

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  @SGaist said in Configuration OpenCV for iOS:

  Did you check that the framework you are linking to does indeed contain all the required architectures ?

  Yes , i checked architectures before open this topic,

  below is getting lipo -info from my framework:
  localhost:opencv2.framework username$ lipo -info opencv2
  Architectures in the fat file: opencv2 are: armv7 armv7s i386 x86_64 arm64

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  Unsolved Qt MySQL driver: entry point not found
  • starryeyed

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  @SGaist I have successfully deployed onto a 32-bit Windows 7 VM, yet to see how real target machines do, but I'm pretty sure I'm good.
  Can you imagine? The key to revealing the mystery of missing dlls was NOT in Dependency Walker, but in Process Explorer!
  I don't want to say anything bad about DW, it just derailed the whole investigation. It has pointed to vcruntime140.dll, which as you said belong to MSVC++ 2015, when actually what was missing, at least from Windows 7 VM, was MSVC++ 2013.
  Attaching a screenshot from ProcExp.

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  Unsolved I'm using Qt Open Source, not selling the software, and need to keep source code hidden.
  • mikoo1991

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  @mikoo1991 Just to add to @SGaist, some Qt modules are not LGPL licenced (like QtCharts, which is licensed GPLv3).

  If you want to use them, you have to respect the GPL.

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  Unsolved vs2015 errors with (git) source code
  • jan marco alkema

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  Also, what branch is this?

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  Unsolved Qt does not find the .exe file
  • CDS95

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  @koahnig said in Qt does not find the .exe file:

  Can you freely switch forth and back with the left pane for compilation selection (debug/release) and the project is compiled as required?

  Yes. And I can also switch betwenn MSVC and MinGW.

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  Solved Setting up the Qt Mysql driver with Lampp in Ubuntu
  • Aritz

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  @Aritz said in Setting up the Qt Mysql driver with Lampp in Ubuntu:

  sudo /opt/Qt5.6.3/5.6.3/Src/configure -opensource -confirm-license -qt-sql-mysql -no-xcb -v

  Why sudo?

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  This topic is deleted!
  • canlx

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  Unsolved move qt files to subdirectory
  • Megamouse

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  Sorry, I haven't used that option from windeployqt.

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  Unsolved [Raspberry] qtsensehat modul
  • J.Hilk

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  So I tried some more,

  On the raspberry I made some Phyton scripts to see if I could access the module.
  And I can, I was able to write to the LED-Display und read the sensor data, and the data changed, when I rotated the pi.

  On the pi side everyhting seems to work.

  I tried to forget the sensehat module for qt and access the libary directly:

  //pro file LIBS: += -L/usr/local/include -lRTIMULib //cpp #include "RTIMULib.h"

  With this I get a `undefines reference to òperator delete(void*,unsigned int)@CXXABI_13.9``from within the libRTIMULib.so

  I was unable to rsync the Pi directories, I tried

  rsync -a -e "ssh" --rsync-path="sudo rsync" /source/path /destination/path

  but after that, nothing copied at all.

  I don't know what else to do,
  I would guess the skript does not make librtimuib relative system link? I wouldn't know where to check or modify it. I'm kinda lost with linux :(

  Maybe I could pass qmake the correct path to the lib? How would I do that?

  Greetings

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  This topic is deleted!
  • canlx

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  Solved MySQL Driver not found (Qt5 MinGW32)
  • starryeyed

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  @SGaist Thank you so much for clarification! I have managed to remove the dll from everywhere in the system except for the MySQL Connector C 6.1 folder in Program Files, which actually contains the dll that I've configured as a required library in .pro file.
  Now I'm struggling with a way to prevent database class from initializing before main(), which causes following errors to occur (copied from console output)

  QSqlDatabase: QMYSQL driver not loaded QSqlDatabase: available drivers: QSqlDatabase: an instance of QCoreApplication is required for loading driver plugins

  I highly suspect that it will be enough to get rid of database *db = new database (); in the beginning of database.cpp.
  I have fixed that and now I deploy successfully.
  Infinite thanks for your patience and insights

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  Solved Online repository file server
  • Rory_1

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  I figured it out. I created an account on DigitalOcean on an appache server and have everything working.

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  Unsolved QXcbConnection: Could not connect to display :0; Could not connect to any X display
  • FelipeMenezes

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  Unsolved Font directory from Qt4 to Qt5
  • AntoineTls

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  Use QFontDatabase to use your own set of fonts for your application.

  As for the style warning, I can't comment as I don't know what distribution you are running nor the window manager or desktop environment.

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  Solved problem related to the file .exe
  • maroko

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  I keep having the same issue with Qt 5.10.1 on Windows. It happens every time when I first build for any other platform. After switching to a Windows version it seems the last path part "debug" of the executable is missing.

  Solution: Close Qt Creator (4.6.0) after switching to a Windiws kit and running qmake. After the restart it finds the executable.

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  Solved No application window on Fedora
  • kviktor

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  It looks like Fedora uses Wayland by default, logging out and changing the env to "Gnome on Xorg" fixed the issue, gonna look into how to deploy QtWayland too.

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  Unsolved Native Build Raspberry
  • ClementD

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  @ClementD You need to install dev packages for OpenGL. See here: http://doc.qt.io/qt-5/linux.html

  sudo apt-get install build-essential libgl1-mesa-dev
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  Unsolved Qt creator cannot successfully start app built with custom built qt bundle on windows
  build qt qtcreator deployment • • farta

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  @jsulm said in Qt creator cannot successfully start app built with custom built qt bundle on windows:

  @farta clone means here cloning from Qt repository (git clone)

  Thank you.
  I never clone it from Qt repository.

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  Unsolved Problem with QT linquist
  • RobertF

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  @RobertF Is your Kit configured properly in QtCreator (any warnings/errors)?

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  Unsolved NDK directory structure problem
  • Julian

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  I could fix it downloading the NDK and using it without the path that there is in adnroid studio.

  Thanks.

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  Unsolved QXCBEGLWindow problem in cross-compile
  • FelipeMenezes

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  Unsolved Question of version QT installation
  • marcolino

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  Hi and welcome to the forums
  5.10.1 should be fine.
  In what way -better do you mean ?

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  Unsolved Over-The-Air Updates
  • TomMitchell

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  @TomMitchell What OS do you run on Pi3?
  QtOTA is for embedded Linux systems built using meta-boot2qt.

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  Unsolved Issues searching bluetooth devices
  • juanfraska

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  What version of Qt ?
  What distribution ?
  What device ?

  What is your current version of the code ?

  Did you check with Qt's examples ?

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  Solved Raspberry Pi, correctly linking to the libaries
  • J.Hilk

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  @mrjj
  I decided to skip the tutorial at this point. At the end of the line I wanted to cross-compile from QtCreator anyway.

  I have working Qtlibaries, a valid qmake, so why not arrange a QtRaspberry - kit?

  I followed the 2nd tutorial from qtrpi, you linked earlier, that tackels that topic,
  and lo and behold, everything works 🙄

  Except fonts aparently. I get the error message that fonts are no longer shiped with qt.
  It doesn't matter anyway for my purpose, because my programm will not have a ui to begin with.

  It's supposed to controll input/output and interact via TCP/UDP with a remote app.

  Thanks for your help. A viable lesson learend. Don't be fixated on tutorials. Take what works and go your own way x)

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  Solved Qmake error / cannot find .pro file
  • MFrost

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  That worked! Thank you! :)

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  Unsolved Qt VS Tools-Options-$(QTDIR) Error
  qtdir vstools • • DrOldies

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  Solved Compiling QMultiMedia with WMF
  • jsmolka

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  Thank you, seems like I need to switch compiler.

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  Solved QML Deployment on Windows doesn't show any window
  • Mark81

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  Yes. It did the trick. Thanks,

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  Solved Error building QT 5.9.1 from souces
  • Dmitriano

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  I am compiling from git sources on branch 5.11. Ran into exactly the same issue. Solution by @raven-workx number (1) did not fix it. (2) fixed it.

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  Unsolved Cross-Platform Raspberry Pi Compilation Issues
  • bockscaracer

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  Hi
  With QtRPI script, you mean from here ?
  http://www.qtrpi.com/home
  Yes cross compiling is a time sink.

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  Unsolved Compiling QT on windows for cross compilation with raspberry, fails. Project ERROR: Cannot run target compiler
  qt 5.10 raspberrypi raspberry eglfs compiler configure • • cskr

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  @cskr
  Hello, Did you find any solution for this problem???

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  Unsolved Problems building Qt 5.9.4 from source on Windows
  • AndyBrice

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  I never managed to get the build from source working on Windows. I had to install from binaries. but even that was a hassle. If anyone is interested there are more details here:
  https://successfulsoftware.net/2018/04/08/getting-qt-5-9-working-on-windows-eventually/

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  Unsolved QtWebEngine Linux deployment problem
  • MazyCrazy

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  Unfortunately linuxdeployqt does not fix this issue, tried the latest, still got:

  FATAL:zygote_host_impl_linux.cc(182)] Check failed: ReceiveFixedMessage(fds[0], kZygoteBootMessage, sizeof(kZygoteBootMessage), &boot_pid).

  I have the ICU data and libraries in the right location, e.g.
  resources/icudtl.dat
  resources/qtwebengine*.pak

  translations/qtwebengine_locales/*.pak

  Any ideas?

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  Unsolved Creating a single-file 64-bit executable with Qt
  • mchome

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  @ambershark said in Creating a single-file 64-bit executable with Qt:

  You can't use the open source version

  Not unless the application is licensed under LGPL/GPL as well, that is.

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  Unsolved Compiling Qt Windows Wallet Error
  • Brewin95

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  @Brewin95 said in Compiling Qt Windows Wallet Error:

  Ok so im back on track now so forget all above,
  the error i have now is
  C:\deps\hyper-v2-master\src\db.h:18: error: db_cxx.h: No such file or directory

  I Fix this error by adding ..\deps\db-6.2.32.NC -I to the INCPATH
  then i get these errors

  error: cannot find -ldb_cxx

  For this one you need to tell it where to find the library. Something like LIBS += -L../deps/db-6.2.32.NC/path/to/lib.

  error: cannot find -lboost_system-mgw63-mt-s-1_55
  error: cannot find -lboost_filesystem-mgw63-mt-s-1_55
  error: cannot find -lboost_program_options-mgw63-mt-s-1_55
  error: cannot find -lboost_thread-mgw63-mt-s-1_55
  error: cannot find -lboost_chrono-mgw63-mt-s-1_55

  These mean you still don't have boost in the right directory or if you do then the files it is looking to link to are not correct. Or you are trying to link to libs that are not built with the same compiler as you are building your current project with.

  collect2.exe:: error: ld returned 1 exit status

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  Unsolved Unable To run QML Application on Ti Processor(AM335x based) custom board
  • Rahul Chauhan

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  Solved qmake error
  • name101

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  @jsulm I'm reinstalled it again and now it working. thanks for attention.