Qt on windows 7 problem

Question

0.00/5 (No votes)

See more:

Creating a QT Widgets program on a Windows 7 machine with Visual Studio 2017 (or 2015) Community Edition results in a program that requires a missing DLL - VCRUNTIME140D_APP.dll. I've been hitting on this problem for 2 days and can't find a way to fix it. Any clues?

What I have tried:

I've tried installing various VC runtime installers (got alot errors and failed installs), researching for hours, trying different versions of my code (including one that failed with the same error immediately after generating a new Qt project, with no added code).

Posted 15-Jun-18 7:05am

Kirk Hawley

Updated 16-Jun-18 3:19am

Add a Solution

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Kirk Hawley · Answer 1 · 2018-06-16T03:20:00

Finally figured it out. When I copied required Qt dll's into my build directory I used the ones in the Qt winrt_armv7_msvc2017 directory instead of msvc2017_64. The winrt_armv7_msvc2017 dlls are for WinRT apps, or, now, UWP apps. WinRT needs VCRUNTIME140_APP.dll, which is probably going to be Windows 10 only.

Henry Skoglund · Answer 2 · 2018-06-15T08:43:00

Solution 1

Hi, you need to upgrade your Windows 7 to Windows 10 for the VCRUNTIME140D_APP.dll to work (it's used for UWP-flavored Qt applications).

Another solution is to install a version of Qt that does not require UWP to be installed, then it would work on Windows 7 as well.

Posted 15-Jun-18 8:43am

Henry Skoglund

Comments

Kirk Hawley 15-Jun-18 15:35pm

Despite the fact that I got it to work under Windows 7 somehow, I think this is the best answer... although I don't know how you would get it to work on a pre-W10 OS without distributing VCRUNTIME140D_APP.dll (or VCRUNTIME140_APP.dll).

Rick York 15-Jun-18 16:49pm

Henry : isn't VCRUNTIME140D_APP.dll the debug version of that library?

Kirk Hawley 15-Jun-18 19:33pm

Yes. My problem has been with the debug version, but it was happening with the non-debug version on release build also.

Kirk Hawley · Answer 3 · 2018-06-15T09:33:00

Well... I fixed it. Somehow. I started the Qt project over from scratch, slowly added my changes and the tesseract-ocr headers and lib files, saving my work and checking in every step, and making sure I added the correct files to the run directory, and the problem is not showing up. I successfully got an image OCR'ed, so I'm running all the relevant code. So I don't know what the problem was.

Qt on windows 7 problem

3 solutions

Solution 3

Solution 1

Solution 2

Add your solution here

Preview 0