Did You have defined Qt's in Qt->Qt options ?
Did You have defined Qt's in Qt->Qt options ?
having exact same problem with qt 5.12.7 and QT VS Tools, could be my QT installation missing some files folders?
Check the QT5 -> Qt Options dialog and ensure that the path to your Qt installation ends at the directory that contains the "bin", "doc", "include", "lib"... subdirectories and be sure there is a default installation selected in the combobox. In my case, for the 32-bit version of Qt for Windows and MSVC 2015, this is "<path to root of installation>/5.11.1/msvc2015". I have multiple versions of Qt installed.
If you didn't actually install Qt (eg. using Qt's online or self-contained installer) then you should probably back up and do that, because the Qt add-in depends on a specific directory structure for Qt components.
<=== The Great Pumpkin says ===>
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