Installation and Deployment

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  Unsolved Install qt 5.6.1 x86 in platform CentOS7.0 x64
  • fighter

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  gmake executed normally. But qt 32bit header files cannot find in the disk, instead of 64bit header files have been found(for example, qconfig-32.h did not exist in the disk, instead qconfig-64.h was found in the disk. )I don't know the reason. Can anyone help me?
  Thank you. The following is my installation steps:

  yum install libgcc-4.8.5-11.el7.i686 yum install libstdc++-4.8.5-11.el7.i686 yum install glibc-devel.i686 yum install openssl-devel.i686 ../qt-source/configure -prefix /opt/Qt5.6.1 -platform linux-g++-32 -no-compile-examples gmake gmake install
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  Unsolved Downloading file using URL in QT
  • shashi prasad

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  Unsolved Compile Qt natively on Raspberry Pi 2/3
  • jars121

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  @sierdzio That shouldn't be a problem, I've certainly not used QtWebEngine before. 4 hours on a RPi3 is pretty good; I've only got a RPi2 at the moment, so hopefully I can leave it to compile overnight.

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  Solved Camera support Raspberry Pi
  • gforeman

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  I don't suppose you can link to a tutorial/step-by-step you used to successfully compile directly on the Pi? I've tried just about every tutorial I could find and haven't had any success thus far.

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  Unsolved Cannot Run Compiler 'cl'
  • webzoid

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  Well that was a tricky one...

  Thanks for sharing your findings !

  Since you have it working now, please mark the thread as solved using the "Topic Tools" button so that other forum users may know a solution has been found :)

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  Unsolved Cross compile Qt (Windows) to Raspberry 3
  raspberry pi 3 cross compile t toolchain • • etiennedm

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  @etiennedm ,
  thanks for this very good tutorial.
  It works without any problems and you can follow them without any modification.
  I would be happy if I can find such detailed description also for actual Qt5 for cross compiling on a Windows machine and other Qt5 topics!
  Kurt

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  Unsolved Getting error Qtwebengine module Build Install for cross compiling
  • hardikh

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  Hi,

  You can try asking on the interest mailing list. You'll find there Qt's developers/maintainers. This forum is more user oriented.

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  Unsolved Build Qt 4.8.7 on Windows 10: -platform ?
  • LancelotPops

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  Hi,

  Windows 10 has been released after Qt 4.8.7 which is also the last of the Qt 4 series which has reach EOL. You'll have to tweak it a bit for the auto detection to work otherwise follow the recommandation and tell configure that you want to use the VS2013 mkspec.

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  Unsolved gstreamer support on QT 5.6.0 in window 10
  • shashi prasad

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  @shashi-prasad Qt does not use GStreamer on Windows, it is only used on Linux. On Windows it is different, see http://doc.qt.io/qt-5/qtmultimedia-windows.html
  Why do you want to use GStreamer on Windows? You just complicate things without any benefits.

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  Unsolved compilation issue with Qt src code of 5.6.2 using cmake in window
  • shashi prasad

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  @shashi-prasad I never used CMake to build Qt. Why don't you do in the way it is supposed to be built?

  configure make make install
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  Unsolved How to build Qt with gcc-6 on macOS
  • Athius

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  Hi,

  Not likely the answer you expect but Qt is officially only supported with Apple's Xcode.

  You'll likely encounter other hurdle getting the build system to use another compiler.

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  Unsolved "fatal: Needed a single revision" - init-repository not working
  • Rulpi

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  Please follow this guide.

  Most notably, clone from official repo. Init-repository may be expecting that.

  git clone git://code.qt.io/qt/qt5.git
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  Unsolved Cross-compile MySQL driver for RPi3
  • endr

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  @endr Well, then I don't know what exactly you need to install. Something with qt and mysql. On Ubuntu it is libqt5sql5-mysql package.

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  Unsolved unable to Play mov and mp4 file using QT 5.6.0 in windows 10
  • shashi prasad

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  @shashi-prasad said in unable to Play mov and mp4 file using QT 5.6.0 in windows 10:

  Unresolved error code 80040266
  compilation successful.

  Hi
  They changed how the back-end is selected.
  https://bugreports.qt.io/browse/QTBUG-51692

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  This topic is deleted!
  • LancelotPops

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  Solved A problem of Installating QT-5.9.1 on CentOS
  • holybee

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  @JKSH

  Finally, QT is installed on CentOS 7.3, which has glibc-2.17 embedded.
  Thank you for all your help.
  If I have questions when using the tool, I will create a new post.

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  Solved QT 5.8.0 install on Jetson TK1
  • Knoobie

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  Hi and welcome to devnet,

  Can you explain the steps you did when the configuration/build failed ?

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  Solved Installation qt-opensource-windows-x86-5.9.1 … only Android_arm target
  • bcag2

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  Hi and welcome to devnet,

  If you would like to follow Qt's releases then I'd recommend using the online installer, that way you can easily install several versions of Qt for several architectures and remove them as easily.

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  Unsolved QT Based widow multi media(Audio video) Player based on directshow.
  • shashi prasad

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  Hi,

  Isn't that basically the same question as [this thread](https://forum.qt.io/topic/81452/qt-based-player-in-window-based-on-direct-show/ ?

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  Unsolved QT based Player in window based on direct show.
  • shashi prasad

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  Qt Media Player example from the documentation.

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  Solved Building Qt 5.9 on Windows 10 - no qt/bin
  • LancelotPops

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  That worked thanks !!

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  Unsolved Can't use Qt3D in Visual Studio 2017
  • li0nsar3c00l

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  Hackish Solution to bypass the beta version problems:
  Go to Project Settings > VC++ Directories
  Add "$(QTDIR)\include" to include directories
  Add "$(QTDIR)\lib" to library directories
  Go to Linker > Input and add the desired library names to Additional Dependencies
  Qt53DAnimationd.lib
  Qt53DCored.lib
  Qt53DExtrasd.lib
  Qt53DInputd.lib
  Qt53DLogicd.lib
  Qt53DRenderd.lib
  for Debug Mode with the "d", for Release Mode without

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  Solved Error while deploying from Ubuntu 14.04 to Raspberry Pi 3
  • MHermann

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  I found the problem and the solution.
  There were still old Qt 5.6 libraries on the Raspi.
  I copied the Qt libraries from the locally mounted Raspi image to the Raspi via rsync.
  And now the applications are running on the Raspi.

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  Solved Problem creating QT Widgets Application
  • blaze077

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  Solved How to add QMySQL driver for Raspberry Pi?
  • JamesDin

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  Which version of Qt are you trying to build ?

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  Unsolved Developing QT apps for LynxOS 7.0
  • pra7

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  Hi,

  Looks like there's a mkspec for that /qt5/qtbase/mkspecs/lynxos-g++. You should ask the LynxOS folks for more information.

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  Solved Maintenance tool "Time out"
  • Athius

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  The download is up again!

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  Unsolved Installation framework translation
  • HojjatJafary

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  Solved WiringPi build error
  • this

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  @this Usually, if you cross compile you have a sysroot. A sysroot is the file system of your target device containing all needed header files and libraries. That means: the path you use for wiringPi would usually be the one pointing to your sysroot. It looks like you have your sysroot under /mnt/rasp-pi-rootfs.
  Try (I assume you have wiringPi under /usr/local/lib on your RaspberryPi, correct the path if it is different):

  -L/mnt/rasp-pi-rootfs/usr/local/lib -lwiringPi
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  Unsolved linuxdeployqt ldd Error
  • ModelTech

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  Hi,

  Take a look at the Linking the application to Qt as a framework chapter of the deployment documentation. It shows how to use macOS tools in order to deploy an application.

  You can use them in addition to macdeployqt when you have unusual stuff happening.

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  Unsolved What is makeCurrent() failed error?
  • sarvy

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  Hi and welcome to devnet,

  Please provide more information. What version of Qt did you use to build that project ? What Linux distribution are you running ? What is your graphic hardware ?

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  Unsolved error: undefined reference Qt 5.8 os/ Ubuntu 14.04.05
  • roygbiv

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  @roygbiv Yea that helps... you have 6 different gstreamers installed, lol. The chance you are linking to multiples just went up by quite a bit. ;)

  As for the -iname, it didn't seem to take that as a parameter to find. Which is weird since that has been in find since like ... forever. It's almost like you did find iname "gstreamer*" and missed the -iname based on the output you got. -iname is the same as -name except that it ignores case. I almost never use -name because of case issues in linux. :)

  Now if I had to guess I'm betting the culprits are the /usr/lib/x86_64 one and the /usr/local/lib one. They are different versions and a lot of people add /usr/local/lib to their LD_LIBRARY_PATH or ld.so.conf.

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  Solved Qt 5.8.0 embedded, LinuxFB, integrate mouse
  embedded linux qt5.8.0 mouse • • Mosolov

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  Because QWS is Qt 4 only.

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  Unsolved Deploying on other PC's doesn't work
  • FlyingHubert

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  @FlyingHubert I personally compile with mingw but deploy with Inno Setup - apart from regular tools it has IDE that works, involves Pascal Script to automate things and gives me total control over the installation or upgrade process. It is easy to learn the basics of that although documentation is somewhat scarce (for more advanced tasks some knowledge of Pascal would be recommended). And it is freeware.
  Very unfortunately for myself I found deployment tools included with Qt a bit clumsy.

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  Unsolved QTCreator does not start: Could not initialize GLX
  • henkman

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  Hi,

  Are you also doing X11 forwarding in your remote ssh session ?

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  Unsolved QMYSQL working on Windows and Mac but not Android
  • LeeH

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  @SGaist Thanks for your help.

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  Solved Project ERROR: Unknown module(s) in QT: waylandclient-private
  • ybakos

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  I have encountered this error during documentation-only build on Mint Linux 18.2. In fact the build error is not now actual, but the file ./qtwayland/tests/auto/compositor/compositor/compositor.pro contains the following strings:

  qtConfig(xkbcommon-evdev) QMAKE_USE += xkbcommon_evdev

  which produce the error.

  I removed these strings temporarily to eliminate the error and received successful build.

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  Unsolved QtCreator Clang Code Model (Qt 5.9.1 & QtC 4.4) ld error
  • ArnoB

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  Solved LINUX Qt deployment (linuxdeployqt) altering application property
  • ShekharIceman

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  @jsulm ya it worked! Thanks a lot.

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  Unsolved Qt PSQL driver not found after Qt app deployment
  • Thejas

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  @Thejas In terminal (Linux version):

  QT_DEBUG_PLUGINS=1 && ./my_app