Debug Qt source in QtCreator

[folibis]

Windows 7 x86, Qt 5.2.0 MinGW 4.8.0
When I debug my app I can view only my source code. In Debug stack view I can see all source files list,but qt source files are greyed
If I enter into it I see disassembled, not the code.
In Internet I found something about mapping path. So I add source path in Options - Debugger - General - Add Qt source ...
My Qt director is C:/Qt/5.2.0 so I added C:/Qt/5.2.0/Src and get:
Source path: Q:\qt5_workdir\w\s
Target path: C:/Qt/5.2.0/Src
What is that Source path? I don't have this path on my computer.
Anyway, nothing helps. I still can't enter into Qt source

[ChrisW67]

Assuming you have used the online installer to get Qt then you need to run the Qt maintenance tool it installed, select and install the source code.

[folibis]

I've installed Qt with offline installer so I have Qt source installed too.
I not succeed to get it worked, probably some bug in QtCreator so I recompiled Qt from source and now it works fine.