New Qt Quick application does not build with VS2015 (cannot include corecrt.h)

• Upgraded to W10.
• Uninstalled qt5.5, vs2013.
• Installed VS2015. (Microsoft Visual Studio Professional 2015
  Version 14.0.24720.00 Update 1)
• Installed wdk for w10.
• Installed qt 5.6 beta.

In Visual Studio a new (c++ only, no qt) project compiles fine.
In QtCreator (that comes with 5.6 beta) I get the error:

C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\crtdefs.h:10: error: C1083: Cannot open include file: 'corecrt.h': No such file or directory

Adding the following to the .pro file:
INCLUDEPATH = "C:/Program Files (x86)/Windows Kits/10/Include/10.0.10240.0/ucrt"
Results in the following error:
error: LNK1104: cannot open file 'ucrt.lib'