Qt 5.9.8 build failed with VS 2019

[Cobra91151]

Hello! I want to build Qt 5.9.8 shared x86 using Visual Studio 2019. I use the source from: https://download.qt.io/official_releases/qt/5.9/5.9.8/single/ The problem is:

Building gn manually in a temporary directory for bootstrapping...
Command '['D:/QtBuild/qt-everywhere-opensource-src-5.9.8/qtwebengine/src/3rdparty/ninja/ninja.exe', '-C', 'D:\\QtBuild\\qt-everywhere-opensource-src-5.9.8\\qtwebengine\\src\\3rdparty\\chromium\\tools\\gn\\out\\Release', 'gn.exe']' returned non-zero exit status 1
Project ERROR: GN build error!

Screenshot:

And the build fails. I use Python 2.7.15 for the Qt 5.9.8 build. Could it be the problem? Thanks in advance.

[SGaist]

Hi,

I might be completely wrong but I think it's rather going to be VS2019 that's too new to build the chromium version from Qt 5.9.8.

[Cobra91151]

@SGaist

I have found the similar issue: https://bugreports.qt.io/browse/QTBUG-67984?page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel&showAll=true

But it is closed now. I will try to build it with Python 2.7.16.

[Cobra91151]

No, the same error for Python 2.7.16.

[Cobra91151]

I will try to build it using VS 2017 tomorrow.

[Cobra91151]

The Qt 5.9.8 is built successfully using Visual Studio 2017. So, it seems that problem is with the new Visual Studio 2019. I reported the issue here - https://bugreports.qt.io/browse/QTBUG-75212

[Cobra91151]

By the way, I successfully built Qt 5.9.8 statically with VS 2019, but problems began to show up.

First of all, the warning says this compiler is not compatible with the Qt 5.9.8 version:

Secondly, it broke a lot of code:

setCursor(Qt::PointingHandCursor); is not working

C++ lambda works but has red underlines (as errors) even no errors are found:

Also, mouse hover on button using setStyleSheet("QPushButton::hover {background-color: #556B2F;}"); method is not working.

And that's not all, after the project has been finally built I noticed that QLabel avatar is missing/displays artifacts:

So, VS 2019 is too new for production development. I decided to use VS 2017 because it has compatibility with Qt and stability.