Run Qt Executable on Windows 11 - missing vcruntime140_app.dll

kevin_d

Hello!

I have developed a program, which is created on Windows 11 by Qt Creator.
Current Settings is Qt 5.15.1 64 bit MSVC 2019, but i can vary this, eg. to MSVC 2015.

Out of the devenv, debug and release build is running stable.
As soon as i want to start the .exe out of the release folder, I get errors of missing VC Runtime dlls.

- VCRUNTIME140_APP.dll
- VCRUNTIME140_1_APP.dll
- MSVCP140_APP.dll
- MSVCP140_1_APP.dll

I have installed most of the VC Runtimes along with VS 2015, 2017 and 2019.

How can I link these dlls out of QtCreator or where can I get the official dlls to execute the standalone application?

best regards, kevin

J.Hilk

@kevin_d
your using MSVC so your target computer needs to have a compatible Microsoft Visual C++ Redistributable installed.

you get that directly from windows
https://docs.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170

if that installed, missing dlls like

VCRUNTIME140_APP.dll
VCRUNTIME140_1_APP.dll
MSVCP140_APP.dll
MSVCP140_1_APP.dll

won't be a problem any more

kevin_d

Hello!

Thanks for reply.
I did, both x86 and x64 for 2015 - 2022 should be installed.

The error remains.

ollarch

Hi,

Try uninstalling 2015 - 2022 redist and install 2019 redist. I had the same problem with VS 2015 on Windows 10.

kevin_d

Same situation.

Cobra91151

@kevin_d

Hello!

Have you tried to put these components inside the application directory? Also, I would recommend to use Dependencies (https://github.com/lucasg/Dependencies) or Dependency Walker (http://www.dependencywalker.com/) to check for the missing libraries in such case.

cristian-adam

You can use the local deployment described at https://docs.microsoft.com/en-us/cpp/windows/deployment-in-visual-cpp?view=msvc-170

This means you just have to copy the dlls alongside your executable.

kevin_d

HI!
The mentioned dlls were clearly dependencies of necessary Qt libraries.
I added the path to Qt5/bin to my runtime-environment and now the application starts without an error:

SET BASE_DIR=C:\Qt\5.15.1\msvc2019_64
SET PATH=%BASE_DIR%\bin;%PATH%
application.exe %*

The problem is that I cannot require the user to install Qt5 for executing my program, so what do I need in advance to deploy my application without additional installation, eg: standalone?

Help is very appreciated.

jsulm

@kevin_d You should take a look at https://doc.qt.io/qt-5/windows-deployment.html
You can use that windeployqt to create a folder containing your app and all needed Qt libs and plug-ins.

kevin_d

@jsulm

Thanks! A simple call:

windeployqt.exe --release "C:\build_directory\release"

did the trick.
I have a lot of files copied and the size of the deployment changed significantly, but now it works when starting the executable directly.

best regard

~ solved