@ifmihai I found that your steps also worked in my case, but I also installed the Universal CRT: KB2999226. That is because the Windows 10 SDK mentioned that non-Windows 10 platforms must install the Universal CRT. I installed Qt 5.8.0 on a Windows 7 platform.

i have a same problem, and have not solve yet

I had the same error, it was caused by a missing DLL.

@Blacktempel said: Is that an existing bug in "include" ? Is there currently no way to include external source files where the path has space[s] in it ? I'm not sure; I have never used the include() function with space-containing paths. You can ask the Qt engineers by subscribing to the Interest mailing list and posting there.

I didn't think about registry, thank you :) BTW, what about debugger?

Last week i sent a "false positive" report to avast av and now looks like the MSVC2015-32bit package is not blocked anymore

Hi, just to want add, while Qt Creator's capturing of your qDebug() output is usually 100%, but if you want to be sure to get everything, you could try running DebugView when your app exits.

Did you really install VS2015? Do you have "Microsoft Visual Studio 2015" in Control Panel\All Control Panel Items\Programs and Features? If so then select it and press "Change" and make sure to install C++.

Hi, Might be a silly question but are you sure you installed Qt for MSVC 2015 and not MinGW ?

Glad you found out and thanks for sharing your findings ! Thanks for the link, I've forgotten that page. What I usually do is an out of source build, so when there's something to change, you can just nuke the build folder and start fresh without to worry about what would need to be cleaned from the source tree. Since you have it working now, please mark the thread as solved using the "Topic Tool" button so that other forum users may know a solution has been found :)

Thanks for sharing the link !

I've found a simple description how to do this http://stackoverflow.com/questions/15826893/building-qt5-with-visual-studio-2012-visual-studio-2013-and-integrating-with Only change win32-msvc2012 to win32-msvc2015 to configure it for VS 2015.