Qt Tools Visual Studio 2019 ver 2.9.1.1 does not recognize libraries.

elicat

Good evening,
I use Qt Visual Studio Tools in visual Studio 2019 in combination with QT version 5.14.2 and link the version to:

C:\Qt\5.14.2\msvc2017_64\qmake.exe

If I try to open Qt project Setting I am notified:

Object reference not set to an instance

I cannot compile because the libraries are not recognized

ERROR : cannot Open source file
#include <QObject>
#include <QJsonArray>
#include <QJsonObject> 
#include <QJSValue>
#include <QVector>

I tried to uninstall the new version and install a previous one but when I close and reopen Visual Studio automatically updates even if I indicate not to update automatically.

Can anyone help me and tell me what's up?

MHutch

I'm having this exact same issue (same vs and qt version). Any luck solving it?

MHutch

I fixed mine by changing

<Keyword>Qt4VSv1.0</Keyword>

to

<Keyword>QtVS_v304</Keyword>

In my .vcxproj file.
I had to repoint it towards the install location, but no longer got the "Object reference not set to an instance" popup and can now build.