Qt Creator fails to build new QT Quick project

[jeonje TPM]

Hello there!
I am trying to create a new Qt Quick project using Qt creator 12.0.2 community. I have the Desktop Qt 6.4.3 MinGW 64-bit kit installed and selected for the new project. All the basic stuff for creating a new project is all there, I have never had this problem before and I don't know what's going on. I am getting the errors as shown in the image above, before even doing anything with the project. Simply it trying to build as a new project does not work and I can't access the project files.

Would be nice to get some help with this, i have tried re-installing full Qt and resetting all settings & cache but the same thing happens. I have only had this problem starting from yesterday, previously this was never a thing.

I have also attached image of CMakeLists. As you can see all the directories are greyed out, but I can access and edit them, but obviously trying to build after editing things still won't work.

Thanks in advance.

[cristian-adam]

It's just tooling not supporting long paths on Windows.

Try this:

if (BUILD_QDS_COMPONENTS)
    if (WIN32)
        set(FETCHCONTENT_BASE_DIR $ENV{HOMEDRIVE}/bld/qds-deps)
    endif()
    include(${CMAKE_CURRENT_SOURCE_DIR}/qmlcomponents)
endif() 

To get the components built with smaller paths.

See https://bugreports.qt.io/browse/QTBUG-117413 for details.