Upgrading old application from QT4 to QT6 some librarys seem to be removed?

[zeux 0]

Hello everyone I am having a little bit of trouble upgrading to QT6 from QT4, I cant seem to figure out what happened to things like qtmain were these removed? this is a screenshot of my linker

[Christian Ehrlicher]

Porting directly from Qt4 to Qt6 is not that easy. Maybe you should port to Qt5.15 first and then to Qt6. When you use qmake or cmake you don't have to take care for qtmain. With QtWebKit you will have no luck - this was replaced by QtWebEngine.

[Chris Kawa]

Note the 4 in your lib's names. You'll need to migrate them first so QtGui4.lib -> Qt6Gui.lib and so on.
qtmain.lib is now called Qt6EntryPoint.lib

QtWebkit, as Christian mentioned, is no longer part of Qt and was replaced by QtWebEngine.