QT Creator - Won't compile - The kit has configuration issues

[Holmes]

I suddenly can't compile my project anymore.

Below my compile output:

jom: C:\Users\Klaas\OneDrive\Universiteit\Year 3\Computer Graphics\OpenGL_1\build-OpenGL_transformations-Desktop_Qt_5_12_1_MSVC2017_64bit-Debug\Makefile.Debug [debug\moc_mainview.obj] Error 2
jom: C:\Users\Klaas\OneDrive\Universiteit\Year 3\Computer Graphics\OpenGL_1\build-OpenGL_transformations-Desktop_Qt_5_12_1_MSVC2017_64bit-Debug\Makefile [debug] Error 2
14:33:15: The process "D:\ProgramFiles\Qt\Tools\QtCreator\bin\jom.exe" exited with code 2.
Error while building/deploying project OpenGL_transformations (kit: Desktop Qt 5.12.1 MSVC2017 64bit)
The kit Desktop Qt 5.12.1 MSVC2017 64bit has configuration issues which might be the root cause for this problem.
When executing step "Make"

And the issues:

I hope somebody will be able to help me.

[koahnig]

@Holmes

Hi and welcome to devnet forum

Did you do already rerun qmake and a rebuild?

Is the include file corecrt.h to be found where should be?
Is the file name correct anyway?