[Interest] QMAKE_CXX.COMPILER_MACROS is not defined.

[Alexander Dyagilev]

Hello,

I have the same bug as described here:
https://bugreports.qt.io/browse/QTBUG-60059

The problem that I use 5.9.1 version of Qt. (Qt Creator 4.3.1).

Today, in the morning, it worked fine. I did nothing at all. Just turned 
off my computer and turned it on in an hour later.

If I open recent session - it says cl.exe is not found.

If I open new project, it says:

C:/Work/Qt/5.9/msvc2015/mkspecs/features/toolchain.prf(129): Variable 
QMAKE_CXX.COMPILER_MACROS is not defined.
Project ERROR: msvc-version.conf loaded but QMAKE_MSC_VER isn't set
Error while parsing file C:\Work\Source\QQC2-FDM\QQC2-FDM.pro. Giving up.

Windows 10, Microsoft Visual C++ 2015.

What is going on? What is happened with Qt Creator??

Pleas help asap.