windeployqt wrong bitness on .dlls (after switch to windows 11)?
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Hey,
I have an QT 5.15.2 application that I have been able to make releases for using visual studio 2022 on windows 10.
Now when I have taken a break from the project and I create a release, the release will crash with a 0xc000007b error.
The only thing that has happened during the break is that my PC has been upgraded with windows 11.
The old release that I created in windows 10 can still be run in windows 11.
I can still run my application in debug mode.
As I have come to understand the error 0xc000007b indicates a mismatch in the bitness of the .dll:s and the .exe. This is indeed a difference between my newly created releases and the old, working, release. The .dll:s are now 64-bit while the .exe is 32-bit, when in the old release everything is 32-bit.
This seems to me that the windeployqt has a different behaviour in the collection of .dll:s? Have anyone else run into this issue? I am a bit afraid to start messing with the windeployqt without knowing what I am doing...
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@JKSH Hey, thanks for the answer and sorry for the very late reply.
My path: C:\Qt\5.15.2\msvc2019\bin
The bitness of the windeploy.exe in that path is 32-bit.
It seems I misunderstood/forgot how the windeployqt is used, that I need to run it for each new release. The dll:s still are of different bitness from the application's .exe but I guess that's fine then...
It works now.
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@Daddedebad said in windeployqt wrong bitness on .dlls (after switch to windows 11)?:
This seems to me that the windeployqt has a different behaviour in the collection of .dll:s?
I don't believe windeployqt has changed behaviour.
Rather, you need to run the correct copy of windeployqt -- If you run the 64-bit windeployqt, then it will give you the 64-bit DLLs.
So, first things first: What is the full path to the version of Qt that you used to build your application? Look in that same folder for the correct copy of windeployqt.
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@JKSH Hey, thanks for the answer and sorry for the very late reply.
My path: C:\Qt\5.15.2\msvc2019\bin
The bitness of the windeploy.exe in that path is 32-bit.
It seems I misunderstood/forgot how the windeployqt is used, that I need to run it for each new release. The dll:s still are of different bitness from the application's .exe but I guess that's fine then...
It works now.
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D Daddedebad has marked this topic as solved on
