Qt crash at installation

Fasstaff

Hello,

I have a problem; When I want to install any Qt version on my computer, the installation crash just at the beginning of the installation, the step after indicating the space storage that it will use, after pressing "install" without any error messages or anything.

This is the first installation and it's on Win10, 64 bits version.

Does anyone have a solution ? Or an idea why it's happening ?

hskoglund

Hmm it could be something hazardous in your PATH settings, you could try open a CMD window with the PATH temporarily set to empty:

set path=
E:\Téléchargements\qt-unified-windows-x86-3.2.1-2-online.exe

JKSH

Hi, and welcome!

@Fasstaff said in Qt crash at installation:

Does anyone have a solution ? Or an idea why it's happening ?

I don't, sorry. I have installed Qt on many 64-bit Win 10 machines and I've never had the installer crash.

What happens if you try on a different PC/laptop?

ODБOï

@Fasstaff said in Qt crash at installation:

Or an idea why it's happening ?

try to see if something is reported in your windows event viewer just after the crash

Fasstaff

@JKSH
Hello Thanks for your answer.

Yes, it is working an my laptop, though I want it on this computer, not the other one.
So using the other one is not really an option.
Could it be my firewall maybe ? or anything security wise ?

hskoglund

Hi, does it still crash if you try installing Qt to some location other than C:\Qt?

Fasstaff

@LeLev

Yeah, it does (never gone to look at that before)

it says that : (It's in french though, ask if translation is necessary)

Nom de l’application défaillante qt-unified-windows-x86-3.2.1-2-online.exe, version : 3.2.1.0, horodatage : 0x5e3a9b5c
Nom du module défaillant : unknown, version : 0.0.0.0, horodatage : 0x00000000
Code d’exception : 0xc0000005
Décalage d’erreur : 0x00000000
ID du processus défaillant : 0x4a3c
Heure de début de l’application défaillante : 0x01d5e297a1d14c96
Chemin d’accès de l’application défaillante : E:\Téléchargements\qt-unified-windows-x86-3.2.1-2-online.exe
Chemin d’accès du module défaillant: unknown
ID de rapport : 9ac2f3c2-ce73-4179-b936-7356413b2cc9
Nom complet du package défaillant :
ID de l’application relative au package défaillant :

Fasstaff

@hskoglund

Hello,
I'm trying to install it in my E: drive so yeah, it does

hskoglund

Ok let me rephrase the question: does it still crash if you try to install to C:\Qt?

Fasstaff

@hskoglund

I just tried and yes it crash too

hskoglund

Hmm it could be something hazardous in your PATH settings, you could try open a CMD window with the PATH temporarily set to empty:

set path=
E:\Téléchargements\qt-unified-windows-x86-3.2.1-2-online.exe

Fasstaff

@hskoglund Sorry for not knowing it, but what would setting a path do ?

JonB

@Fasstaff
The code is clearing the path environment variable to try to ensure the installer doesn't try to load/run/find something elsewhere that it's not supposed to.

But it doesn't matter unless you try @hskoglund 2 lines (exactly as shown) in a Command Prompt. See if that makes it work or whether you have the same crash.

Fasstaff

@hskoglund
Oh, I don't know why but this solve my problem, thank you very very much !

Though, if possible, I would still like the explanation ^^

JKSH

@Fasstaff said in Qt crash at installation:

@hskoglund
Oh, I don't know why but this solve my problem, thank you very very much !

Great! Please mark this topic as "Solved" and mark his answer as "Correct Answer"

Click "Topic Tools" -> "Mark Post as Solved"
Click the triple dots (next to the answer) -> "Mark this post as the correct answer"

Though, if possible, I would still like the explanation ^^

The PATH is a list of folders. Windows tells your executable to find and load DLLs from the PATH folders.

If clearing the PATH stops a program from crashing, then you probably have a case of DLL Hell. One of the folders in your PATH probably contains DLLs that are incompatible with the Qt installer (for example, it might contain a different version of Qt DLLs)

For this reason, we should avoid adding items to the PATH unnecessarily (and we should design our software in a way that doesn't need to be put in the PATH)

Fasstaff

@JKSH
Thank you very much for the explanation !
And yeah, marking the topic as solved !

sunhouzi

i have same problem, and i try run set path in cmd:

set path=
qt-opensource-windows-x86-5.14.2.exe
but it still crash, also i try use online install, it same result crash on progress.

I try change install path to C or D, it still crash !

I Think the system have problem, but i upgrade to windows 11, it still cash !

this is system event log:

错误应用程序名称: qt-opensource-windows-x86-5.14.2.exe，版本: 3.2.2.0，时间戳: 0x5e673bc0
错误模块名称: unknown，版本: 0.0.0.0，时间戳: 0x00000000
异常代码: 0xc0000005
错误偏移量: 0x00000000
错误进程 ID: 0x5f48
错误应用程序启动时间: 0x01d7dad7a42aeffe
错误应用程序路径: D:\Download\EGDownloads\qt-opensource-windows-x86-5.14.2.exe
错误模块路径: unknown
报告 ID: 3e71d254-b3f0-491a-b111-88f38447180c
错误程序包全名:
错误程序包相对应用程序 ID: