Can't start Qt Quick application

[mrjj]

Hi
You start app from within Creator ?
If you are using a laptop with windows, make sure you updated the gfx drivers
especially if its intel build in gfx.
QML requires ok openGL to run.

[DavidM29]

Thank you for your answer,
Yes I do start the App within Creator.
I have updated my Nvidia drivers, I have no GFX drivers and can't find one suitable for my computer on the intel Website, I have an old 3rd Generation i7.
In fact I just found out that it is not only Qt quick application, standard UI Application crashes also...

[mrjj]

@DavidM29
Hi
Do you mean that a normal Qt GUI app also crashes when run from Creator ?
There might be some DLL conflict then.

[DavidM29]

Yes, I just tried a previous GUI App and it crashes. I believe there is something wrong with my DLL. How can I check that ?

[mrjj]

@DavidM29

Hi
So if you create a default empty GUI app, it can crash ?
( an older project , unless really clean, is not optimal)

Anyway, some of the reason for such things.
1: During install, the anti virus fuxed it up silently.
cure is to reinstall with it off
2: some other Qt are are installed on system and added its path to global path.
3: Font issues. at least in win 7 , it could make it crash with a a bad font.
4: Something is up with Creator and it dont setup paths correctly when it runs.

Did you install Qt recently or did you have a big windows update ?

[DavidM29]

I just tried with a new GUI App and here is the result :

I reinstalled Qt recently. I had an old version on my windows (I was using virtual machine with linux). And since I reinstalled it, it does not work anymore.
Your second reason could be the reason why I have problem considering my old Qt kept its path and my new one added some.
How can I make sure of that ?

[mrjj]

@DavidM29

Hi
if you start
C:\Qt\MaintenanceTool.exe

Does it list more than one Qt installed ?
Normally its NOT an issue (Creator can use many version of Qt) but
odd crashes like this normally/often comes from wrong DLLs being loaded.

if you have other version of Qt on hd. Could you rename that folder for test if 5.11 than runs?

[DavidM29]

I started it, then I tried to make update modules and Add or remove module but it tells me that I have no valid and active repository, at least one is required. So I suppose I have something real wrong. I try to remove everything I have around Qt and make a clean install.

[mrjj]

@DavidM29

Nah, it might not be something you did :)

But if an options, please remove all and use the online installer to install
one or more Qt versions.

I think its the fastest way to make it run :)

[DavidM29]

I had issues using the online installer, I was stuck at 5% that is why I used Offline installer. So I uninstalled everything, and found an older version of that online installer and now everything seems good. Exept that I don't have the 5.11 but only 5.10 version of Qt don't know why it was not available on that installer. Is there a way to update Qt without downloading the entire package ?

[mrjj]

@DavidM29
well maintenance tool can update. :)