Program crash because of OpenCV

Engelard

I'm trying to do some stuff with opencv for the first time, followed all steps from the official manual, program have no errors, compiles well, and it eventually crashes when i press "Run".

The line which cause this crash is simple, and it is the only OpenCV stuff in the code:

cv::Mat sourceIMG;

Here is part of my .pro file:
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And this is includes, app output and deploy info:
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Build environment which i added yesterday for includes, and now added .dlls for hope that it would help but it did'nt:
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It is probably somthing wrong with opencv dll's, but i'm not sure, please help.

Engelard

This topic helped, i checked my system variables and found that manual which i used for installing OpenCV mislead me, i added wrong folder(for x64 version) when i was aiming x32 OpenCV.

Changed System variable path for OpenCV dlls to "D:\Program Files\opencv\build\install\x86\vc15\bin" , now no crash, program works correctly.

Engelard

Ah, and i also can't debug it for some reason. When i try(Ctrl+F5) it simply gives me message-box(error) "The CDB process terminated"

J.Hilk

@Engelard what compiler are you using in your qt build, I can't really tell from "MSVC_for_32" ;)

Engelard

@J-Hilk how to what compiler exactly my project uses right now?
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some of those i suppose.

JonB

@Engelard
I'm thinking the 15.0 (x86) one would be best for your situation.

Engelard

@JonB as i understand exactly that is used by my project right now:
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And again, everything compiles well, it crashes at runtime because of that OpenCV line..

JonB

@Engelard
Just because it compiles/links does not mean all is well, per se. Your line creates a runtime OpenCV object, any incompatibility could show up at that point. Not that I have the answer for you, but just saying....

BTW, is that line a global/static variable, a member variable, or what? I know nothing about OpenCV, does it have a library initialization call you are supposed to make before creating any objects?

When i try(Ctrl+F5) it simply gives me message-box(error) "The CDB process terminated"

Have you tried a one-line, Hello World program, no Qt or OpenCV, just to check your compiler set up etc. is working OK?

Engelard

@JonB said in Program crash because of OpenCV:

BTW, is that line a global/static variable, a member variable, or what?

Simple object declaration

Engelard

@JonB said in Program crash because of OpenCV:

Have you tried a one-line, Hello World program, no Qt or OpenCV, just to check your compiler set up etc. is working OK?

As i said at the beginning, if i removing that exact line(cv::Mat sourceIMG;) - everything works well

Engelard

This topic helped, i checked my system variables and found that manual which i used for installing OpenCV mislead me, i added wrong folder(for x64 version) when i was aiming x32 OpenCV.

Changed System variable path for OpenCV dlls to "D:\Program Files\opencv\build\install\x86\vc15\bin" , now no crash, program works correctly.