What is my problem with 6.3 ?

ChrisW67

Quite apart from the permissions issues, this error message:

Project ERROR: Unknown modules(s) in QT: bluetooth

means you probably have not installed the Qt Connectivity module in Qt 6.3. Similar for the other Project ERRORs.

JonB

@AnneRanch
Since you earlier showed a message stating that /media/q5 is a "Read-only file system" everything goes wrong because it cannot create a Makefile etc. Look at where your project is set to use its build directory for where it puts the Makefile and the .o/executable files it generates....

If you want to build starting from a Qt example, first copy the whole example directory to somewhere where you do development in your own user area --- not in the read-only mounted area --- and do all your work there.

Anonymous_Banned275

@ChrisW67 BINGO BUT I am pleading ignorance - when I run QT maintenance tool I always get to "install / update "
So

what app is this "module selection in " ? (Linux not Windoze )
Does it have to be installed and if so how ?

Anonymous_Banned275

@JonB I have that solved ....

J.Hilk

@AnneRanch

start the maintenance tool
login
add or remove components
expand Qt tree
expand Qt6 tree
expand Additional Libraries tree
set a checkmark next to Qt Connectivity and any other additional Module you're using
click next
let it install
finished

@JonB I have that solved ....

well you didn't say so yet

Anonymous_Banned275

@J-Hilk
This is what I am getting... I do not want "install" ...

J.Hilk

@AnneRanch mmh, have seen that one only once before,
IIRC, select custom installation, and you should get the tree selection window

Anonymous_Banned275

@J-Hilk After ":custom " selected it still wants to "install " and complains about existing directory. I guess I will reinstall into different directory and take a coffee break...

STILL NO MODULES

mchinand

Expand the Qt 6.3.1 item; that's the version you were using that produced your missing module error above. Qt6 is more modular, but you can see from your screenshot that Qt 5.15.2 has separately installable modules too, Qt Charts, Qt Quick 3D, etc.

Anonymous_Banned275

Conclusion (Linux)
When initially loading QT

If version 5.x it is necessary to add libraries of interest manually
With version 6.3 (tested with 6.3) such libraries / components / modules should be added during install
- selected by expanding the version of interest.

{Note to myself QT terms " library / component / module" are used interchangeably ...)

PS If it is OK with the group - I would like to delete most of the pictures.