Error in Qt VS Tool

[wasawi2]

I'm trying to build an old project which was made with a previous version of he Qt VS Tools.

I get the following error:

2>Moc'ing src\QtGuiClass.h...
2> :/Qt/6.5.2/msvc2019_64/include/QtCore/qnamespace.(1068:1): error: Parse error at ","
2>C:\Users\123 123\AppData\Local\QtMsBuild\qt_globals.targets(272,5): error MSB4181: The "QtRunWork" task returned false but did not log an error.

Any idea what is going on?

Thanks in advance!
j