#include <stddef.h> compiler error
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Hi All, I'm new to Qt, I installed the newest sdk and tried creating a very basic Qt widget application -> Qt Gui application. Basically just a hello world type app. I get an error in gglobal.h file: C:\QtSDK\Desktop\Qt\4.8.0\msvc2010\include\QtCore\qglobal.h:45: error: C1083: Cannot open include file: 'stddef.h': No such file or directory I'm running Qt on Windows 7 box as an administrator. Thanks for your time and help. 
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Do you have MSVC installed in your machine??? 
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mm.. as per your its says it should be "msvc2010" or the best thing is to use MinGW compiler as it comes pre-installed with Qt SDK. From your project properties select MinGW under Qt Version tab, and select MinGW under Edit build configuration also. This should work.. 
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I have the same problem. 
 there are 3 header files which qtcreator cant fine .
 <comdef.h> <atlbase.h> and <stddef.h>.
 which <stddef.h> is defined and used in "qglobal.h"
 I had Vs 2013 and Vs 2010 installed when i installed QtCreator 5.2
 then i found out that in order for the QtCreator to compile, i need to install VS2012 as well! so i did , this time the compilition is halted with those headers being not found!
 How can i solve this issue ?
 Regards in advance.
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Any help? i am really having lots of problems. 
 i re installed qt 5.2 msvc2012 . apart from my former problem, now if i try to create a default application, it just fails!! with the compiler error :
 bq. F:\ms\Qt5.2.0\5.2.0\msvc2012\include\QtCore\qglobal.h:46: error: C1083: Cannot open include file: 'stddef.h': No such file or directoryWhat is going on? please someone help! 
 
