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Setting up Visual Studio 2019 for creating QT6 projects
dominion last edited by
I have been using Visual Studio 2019 for well over a year to create my QT 5.xx.xx projects in preference to using QT creator. I have downloaded QT6 and successfully run a few of the QT6 demos to test that all is well in QT creator. However I prefer to use visual studio 19 for all my coding and compiling and have found that the latest version of the QT Visual Studio tools (that looks to be a product of the QT company) seems to not offer a setup template for creating a QT6 project.
I have attempted to set up a QT6 project using the latest version of QT VS tools, and changed the QTDIR environmental variable to match the path to the QT6 directories as I have done in the past when updating QT to a new version. When I compile a simple QT application template to display a QT window, as I do when setting up a new project, I get an error
ERROR running qmake.
I know QT6 is abandoning qmake in favor of cmake, but I would have thought that qmake was only a part of creating and compiling QT code within QT Creator, not visual studio, and thus not used.
So my question is should I need to wait for a new version of QT VS tools to be released and not use QT VS tools to setup a visual studio QT6 project?
If so, When can a new version of QT VS tools be expected to be released with QT6 project templates?
I am about to attempt to manually create a Visual Studio project to utilise QT6 and create a QT6 project template using the demos and some QT5 manually setup projects as a guide. Is there any advice I need to follow or information to do this correctly such as a new particular library that is in some obscure location and not easy to detect as being mandatory for all projects? QT6 is so recent I just cannot find anything to help in this regard.
Any help would be appreciated.
dominion last edited by
Ok, Failed to manually set up Visual Studio 2019 to use QT6 as expected. Not surprised as I have never been able to do this in the past, And I have little to no knowledge of using Cmake, so no complaints.
However, I had decided to upgrade Qt 5.15.1 to 5.15.2 and did this without a problem. Once that was done, I uninstalled Qt 5.15.1
Then I decided to try creating a new QT6 project and try out a few things using QT creator for QT6. Well, blow me down, now nothing works and I get a message
is not a full path to an existing compiler tool.
Even the examples now have this error occurring.
But this is a path name to an old installation that I uninstalled months ago.
As suggested by the error message displayed, I created a CXX environmental variable with the correct path name to this file in my QT6 installation. The Error still occurred.
Then, also as suggested I created a "CMake cache entry CMAKE_CXX_COMPILER to the full path to the compiler"
which according to online Cmake documentation is of the form
set(<variable> <value>... CACHE <type> <docstring> [FORCE])
so using my total non familiarity with Cmake I entered
set(CMAKE_CXX_COMPILER P:/Productivity/Programing/QT6/Tools/QtCreator/bin/clang/bin/clang-cl.exe CACHE FILEPATH [FORCE])
into the CMakeLists.txt file.
Did not solve the problem. It seems to me that there are still a few problems to be ironed out with setting up QT6 using CMake. I am sure there is some file or variable created during installation that this error originates from, but where is and how to fix it is a mystery to me right now. If anyone can help with where this path name is stored so I can modify it, I would much appreciate it.
I being a user of QT who does not have a familiarity with dealing with Cmake and does not in any way want to even touch Cmake files, as every attempt in the past has lead to disaster, I hope that QT6 will be more friendly towards Cmake novices in future releases.