cannot open source file, std lib files

[MattyJacques]

I'm trying to get Qt up and running on Visual Studio 2017 but I can't seem to build the project.

Windows 10
Visual Studio 2017

Installed Qt via the online installer selecting msvc2017 version. I added "msvc2017_86\bin" to environment variables. However I'm still getting these errors messages.

This is the output and the error list states lines like

Error (active)	E1696	cannot open source file "stddef.h"	TestProject   	c:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.10.25017\include\atomic	15	

1>C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.10.25017\include\crtdefs.h(10): fatal error C1083: Cannot open include file: 'corecrt.h': No such file or directory
1>moc_BacklogManager.cpp
1>C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.10.25017\include\crtdefs.h(10): fatal error C1083: Cannot open include file: 'corecrt.h': No such file or directory
1>main.cpp
1>C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.10.25017\include\crtdefs.h(10): fatal error C1083: Cannot open include file: 'corecrt.h': No such file or directory

[MattyJacques]

Turns out this way due to me editing the Visual Studio 2017 install. For some reason I must have unchecked "Standard Library Modules" during in install. What an idiot.