Qt6::3DQuickExtras can't be imported correctly

[Tej A. Shah, DMD]

Using Ubuntu 24.04. Here is a list of qt packages I have installed: https://pastebin.com/Cp9uXqhf

Whenever I try to use Qt6::3DQuickExtras (3DQuickExtras) via cmake, I get this error:

/usr/include/x86_64-linux-gnu/qt6/Qt3DCore/6.4.2
in its INTERFACE_INCLUDE_DIRECTORIES. Possible reasons include:
* The path was deleted, renamed, or moved to another location.
* An install or uninstall procedure did not complete successfully.
* The installation package was faulty and references files it does not provide.

I confirmed that /usr/include/x86_64-linux-gnu/qt6/Qt3DCore/6.4.2 does not exist (all the files are just in /usr/include/x86_64-linux-gnu/qt6/Qt3DCore ). Therefore, the package for 3DQuickExtras needs to be configured to look at the correct directory.