Installation and Deployment

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  Unsolved How to install Qt packages which are no longer included in the MaintenanceTool
  • DuBu

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  @J.Hilk Maybe, I have to try.

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  Solved C++ library with webAssembly: A success: But only white html page
  • Izza

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  RESOLVEd: it was access permissions i need to change in my system
  chmod 777 :/
  Also by adding prefix /QcStyle/ in my qrc for C++ library

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  Unsolved Static compilation. Qt 5.12.3, Win10, MinGW.
  • Folco85

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  Solved Is Qt 5.12 for WebAssembly 3d module supported?
  • xAttegatesx

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  Qt3D module is not supported by Qt for WebAssembly due to it's use of multi-threads.

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  Unsolved Qt 5.5.1 build failure on Windows (path length?)
  • Braden

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  I had the same issue. Use simple and helpful longpathtool.
  Worked like the charm. Try it.

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  Unsolved How and what version can be installed on Linux Mint 17.3 or 19.1?
  • RRomano001

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  @RRomano001 Why do you install as root?
  You should install in your home directory with you user rights.
  Or do you want to share the Qt installation across different user accounts?

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  Unsolved Intel OpenVino on Linux
  • Sdra81

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  I can confirm on:
  OpenVino 2019 R1.0.1
  Ubuntu 18.04
  QT 5.9.5

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  Unsolved macdeployqt strips resources from deployed binary
  • DJ-Ogurt

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  Related bug report: QTBUG-55199

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  Unsolved Is it possible to build QtMqtt on Windows 10 for Android ARM v7?
  • Matthias Klein

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  @Matthias-Klein said in Is it possible to build QtMqtt on Windows 10 for Android ARM v7?:

  C:\Users\MAK\AppData\Local\Android\Sdk\ndk-bundle/toolchains/llvm/prebuilt/windows/bin/clang++

  Does this path exist and can you call the compiler manually?

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  Unsolved How to run a Qt 5.12.2 application on macOS 10.11?
  • Strictly_Prohibited

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  Hi,

  As an alternative, you can also use a virtualization software like Parallels and run the oldest version of macOS you want to support and build on that one.

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  Unsolved Qt installer on macOS
  • hBjBpgr

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  No one has replied

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  Solved duplicate method warning, generating unknown symbol
  • Izza

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  QcStyle.qrc was missing , i needed to generate the resources file and pass that to Q_INIT_RESOURCES

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  Unsolved Error qt and OpenGL broken library
  • panks

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  @panks Is it Qt which is provided by CentOS?

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  Unsolved Qt Cmake configuration has no path to a C++ compiler set.
  qtcreator cmake c++ compiler • • Shubby

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  @xiaocao Hi and welcome to devnet,

  Then you should start by answering the questions I asked.

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  Solved using QSerialPort with CMake
  • willem_vdk

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  Aha i solved it thanks to @aha_1980 hint
  I needed to install the 'libqt5serialport5-dev' package
  Thanks!

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  Solved Deploy as portable (one exe file)
  • shokarta

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  @shokarta just one reminder: static linking may have impact on the LGPL licence, if your app is closed source.

  Regards

• 

  Solved How to add Qt Application icon in ubuntu?
  hii how to add qt application icon in ubuntu • • vaibs

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  QMainWindow::setWindowIcon("name _of_png_file");

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  Solved compiling c++ library with web assembly
  • Izza

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  Thanks alot

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  Unsolved cannot create a widget application
  • K-Str

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  @K-Str said in cannot create a widget application:

  I get in my project only the .pro-file the other are created but they are not visible in the project tree.
  In the project folder I see all other files. .cpp, .h and .ui files.

  what is the content of the .pro file?

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  Solved QXcbConnection: Could not connect to display
  • MHermann

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  Just as normal user authorize root, to connect to your display :)
  xhost +SI:localuser:root

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  Unsolved 'emscripten.h' file not found
  • Ananym

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  Is it your IDE that shows the not found error or do you get it when trying to build? I use Win 10 and WSL Ubuntu for Qt WebAssembly and when I build an application that uses emscripten.h it builds succesfully.

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  Solved Qt could not find the platform plugin cocoa
  • LightDeveloper

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  @LightDeveloper It's fine to install Qt outside your user directory, however, once you install it, do not manually move it elsewhere. Use the installer to specify the location where it is to be installed to.

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  Solved deployed via windeployqt wont run but stays in background (task manager)
  • shokarta

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  I would check with 5.12.3 since it just got released to see if it was fixed there.

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  Unsolved Cant Download UWP Component
  • pdecostervgls

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  Hi, try disabling your anti-virus program.

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  Unsolved Problems with building Qt Tools using vcpkg
  • TheScarfix

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  Solved How SPI(Serial peripheral interface ) Works in QT on Raspberry Pi B3+
  qt5 raspberry spi • • Andrex_Qt

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  Root permission to the program
  2.Spi Begin function

  After these modifications it started working. beginners mistake.

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  Unsolved Qt SDK and Creator version for older operating system versions
  • Manuel-2019

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  @Manuel-2019 thanks for that awesome report!

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  Solved macdeployqt: ERROR: Could not find bundle binary for "MyApp.app", even though MyApp.app/Contents/MacOS/MyApp exists
  osx macdeployt • • mbrochmann

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  Well, I discovered that the "executable file" in Info.plist was something different than MyApp. So the error was due to my false assumption that macdeployqt would look for an executable with the same name as the app bundle itself.

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  Solved Building 5.12.1 32-bit static Qt for MSVC on Windows 10: The system cannot find the file specified (qgltf5.pdb).
  static qt build qt jom msvc2017 windows 10 • • oblivioncth

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  @oblivioncth said in Building 5.12.1 32-bit static Qt for MSVC on Windows 10: The system cannot find the file specified (qgltf5.pdb).:

  C:\Engineering\Development\Qt\Tools\QtCreator\bin\jom -j 8

  I wanted to keep the versions for the standard and static versions consistent, but its not like it would really matter since its just a small revision difference. So, I attempted to build 5.12.3 this time and while I was at it I grabbed the dynamically linked version of 5.12.3 from the maintenance tool as well.

  This time I ran the Visual Studio Native Tools command prompt as an administrator since I figured that had a shot at mattering even though I didn't see it mentioned anywhere and wasn't doing this is a UAC protected directory.

  And... it built completely with no issues and I was able to produced a statically linked version of the app I'm working on like I wanted to. I don't know if there was a bug in the 5.12.3 source, if it actually was running the prompt as administrator, if there was just a simultaneous access issue with some of the files/tools on the last run, or if it was just a fluke, but everything works fine now.

  The build ended on the same two lines but succeeded in copying qgltf.pdb instead of not finding it and the process took much longer than the previous attempt, so I'm guessing that there were errors earlier in the process that didn't stop the build script so I didn't catch them.

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  Unsolved Is it expected that new maintenance tool removes old Qt versions automatically when doing changes?
  • dldd

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  @aha_1980 said in Is it expected that new maintenance tool removes old Qt versions automatically when doing changes?:

  I have not come across this, but it would be a bug. Have you already searched bugreports.qt.io for similar reports?

  Did a search now, but couldn't find anything related.

  Which Qt version did you have installed that is missing now?

  None are missing, which might be due to clicking cancel soon after the removal started - some miscellaneous files seems to have been removed, however. Tried it again to get some screenshots, in this case selected "MinGW 7.3.0 64-bit" and clicked "Next".
  
  

  If no one else sees such problems, there might be a (pre-existing) corruption in my Qt installation setup that causes this.

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  Solved Same ol' "No valid kits" issue...
  • Uberlinc

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  @Uberlinc Glad you got it working, and thanks for reporting back.

  Regards

• 

  Solved Building 5.12.3 on Ubuntu 19.04 results in missing x11extras module
  • Skyweb

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  Well, I tried it again with the below

  OPENSSL_LIBS='-L/usr/lib/x86_64-linux-gnu -lssl -lcrypto' $SRC_FOLDER/configure -release -opensource -confirm-license -prefix $PREFIX_FOLDER -openssl-linked -static -optimize-size -ltcg -nomake examples -nomake tests -nomake tools -skip qt3d -skip qtactiveqt -skip qtcanvas3d -skip qtconnectivity -skip qtdeclarative -skip qtdatavis3d -skip qtdoc -skip qtgamepad -skip qtcharts -skip qtgraphicaleffects -skip qtlocation -skip qtnetworkauth -skip qtpurchasing -skip qtquickcontrols -skip qtquickcontrols2 -skip qtremoteobjects -skip qtscxml -skip qtsensors -skip qtserialbus -skip qtserialport -skip qtspeech -skip qtvirtualkeyboard -skip qtwebchannel -skip qtwebengine -skip qtwebview -skip qtscript make make install

  And it actually doesn't complain that x11extras isn't found

  Getting other issues when building my project, related to wayland-xdg-shell and qharfbuzz: compile log These aren't errors. Guess my issue is solved without changing anything related to configure/make.

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  Solved Can we install qt 4.8.1 in ubuntu 18.04?
  • vaibs

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  @mrjj Thank you so much

• 

  Unsolved Qt-Creator version for specific RHEL OS version
  • ubstung71

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  @ubstung71 said in Qt-Creator version for specific RHEL OS version:

  This means I will have to upgrade Qt-Creator as well

  No, QtCreator can handle many different Qt versions. But I guess RHEL v7.6 will have a newer version of QtCreator also, did check?

• 

  This topic is deleted!
  • Ananym

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  Unsolved How can I specify the path for the linker ?
  • e2002e

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  This is normal. You should deploy your binaries to use them outside of Qt Creator.

  To deploy on Linux, you can use linuxdeployqt - it's not an official part of Qt, but it's a well-established and tested solution.

  Or you can read through the docs.

  Note: runtime library detection is not done by a linker.

• 

  Unsolved cmake folder is missing
  • jpitz3131

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  Hi,

  What Linux distribution are you using ?

  The qtbase5-dev should provide the cmake files.

• 

  Solved "Cannot find missing dependency" using Qt Maintenance Tool on macOS 10.13
  • AndyBrice

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  @AndyBrice said in "Cannot find missing dependency" using Qt Maintenance Tool on macOS 10.13:

  bundled as standard though

  They are not. You simply should not select the whole Qt version, but expand the tree under the version you want to install and only select what you really need.

• 

  Unsolved Qt 5.9.7, can't compile to Android, arm-linux-android-elf-64bit,x86-linux-android-elf-64bit,
  • clown

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  Hi and welcome to devnet,

  Your NDK version is too new.

  Please follow the recommendations of the Android Getting started guide in Qt's documentation.

• 

  Unsolved How to get docs into prefix build [5.12] [win32-g++]
  • namezero111111

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  @namezero111111 said in How to get docs into prefix build [5.12] [win32-g++]:

  but where is this mentioned in the build documentation???

  I guess it is here:
  "Shadow builds

  For shadow builds, the source directory and install directories are different and the global templates need to be moved to the install directories. To do so, run:

  cd qtbase
  make install_global_docs
  "