Cannot build QTcreator from source.

[Gyoza Man]

Currently, I am trying to build QTcreator 9.0.0 from it's source code. I ran

cmake -DCMAKE_BUILD_TYPE=Debug -G Ninja "-DCMAKE_PREFIX_PATH=/usr/lib/qt6;/usr/lib/llvm" ~/Downloads/qt-creator/

I have llvm and Qt 6.4.2 installed, but the output is

CMake Error at cmake/FindQt5.cmake:57 (find_package):
  Found package configuration file:

    /usr/lib/aarch64-linux-gnu/cmake/Qt6/Qt6Config.cmake

  but it set Qt6_FOUND to FALSE so package "Qt6" is considered to be NOT
  FOUND.  Reason given by package:

  Failed to find Qt component "Qml".

  Expected Config file at
  "/usr/lib/aarch64-linux-gnu/cmake/Qt6Qml/Qt6QmlConfig.cmake" does NOT exist

  

Call Stack (most recent call first):
  CMakeLists.txt:68 (find_package)

I am running aarch64 Ubuntu 22.04 LTS .

[Christian Ehrlicher]

Can QtCreator already be compiled with Qt6? I doubt so.

[hskoglund]

Hi, perhaps you've forgotten to install the "Qt 5 Compatibility Module"

[Gyoza Man]

@hskoglund Nope. I think I have installed it.

[JoeCFD]

try to use cmake-gui to load cmake file and check what is wrong. You can manually change settings. It is a small, but a nice tool.
and what is the output of
which qmake
qmake --version

[Gyoza Man]

@JoeCFD I found the error. It is saying it cannot find the path to Qt6Qml, but I do not know how to fix this.

[Gyoza Man]

Okay, so I just gave up on building it from source, and decided to make a Ubuntu equivalent of a good old FrankenDebian, so I could install the newest version [9.0.1] on my Jammy Jellyfish machine, using a Lunar repository. But I will keep this open, in case anyone else has the problem.

[cristian-adam]

I just installed Ubuntu 22.04 and build Qt Creator 9.0.2 (latest tag from 9.0 branch) as:

1. Install build tools

$ sudo apt install build-essential cmake ninja-build git

2. Install all the Ubuntu Qt 6 SDK packages

$ sudo apt install qt6-base-dev qt6-base-private-dev qt6-declarative-dev qt6-declarative-private-dev qt6-tools-dev qt6-tools-private-dev qt6-scxml-dev qt6-documentation-tools libqt6core5compat6-dev qt6-tools-dev-tools qt6-l10n-tools qt6-shader-baker libqt6shadertools6-dev qt6-quick3d-dev qt6-quick3d-dev-tools libqt6svg6-dev libqt6quicktimeline6-dev
libqt6serialport6-dev

3. Install LLVM / Clang dependencies

$ sudo apt install clang-15 clangd-15 libclang-15-dev

4. Install Qt Creator dependencies

$ sudo apt install libgl1-mesa-dev libvulkan-dev libxcb-xinput-dev libxcb-xinerama0-dev libxkbcommon-dev libxkbcommon-x11-dev libxcb-image0 libxcb-keysyms1 libxcb-render-util0 libxcb-xkb1 libxcb-randr0 libxcb-icccm4

5. Get Qt Creator source code

$ git clone --recursive https://code.qt.io/qt-creator/qt-creator.git repo
$ cd repo
$ git checkout 9.0
$ git submodule update

6. Build Qt Creator

$ cmake -G Ninja -S repo -B build -DCMAKE_BUILD_TYPE=Release
$ cmake --build build
$ cmake --install build/ --prefix qtcreator-9.0

I've got a full build of Qt Creator, then started ./qtcreator-9.0/bin/qtcreator to open the repo/CMakeLists.txt project and load the build that I've currently made 😊

If the CMake configure process is complaining about something, just use apt-file search <file> to locate the package that needs to be installed.

[cristian-adam]

I've made a Wiki article from the above post https://wiki.qt.io/Building_Qt_Creator_from_Git_on_Ubuntu_22.04 😊

[andr]

@Christian-Ehrlicher said in Cannot build QTcreator from source.:

doubt

Qt Creator was compilable with Qt 6 around the time Qt 6.0 was released. Currently it /requires/ Qt 6.2 or later.