Compile Qtcreator with mingw ?

[wysota]

After (I suppose) finished the work, I have explored the main folder and see some files and subfolders that has been created.
Where is the new Qtcreator ? how many folders I need ? What folders at the original QT I must rewrite ?
If I run the new QTCreator.exe (located at \bin
Failed to load core \lib\qtcreator\plugins\Nokia\Core.dll >> Not find ?
( And this file really exists )
I'm completely lost...

Set the INSTALL_ROOT environment variable to the directory where you want to install Creator to (like C:\QtCreator_2.1) and run mingw32-make install.

But, Why QT people compile qt creator with msvc and Qt designer with mingw ?????

Because Designer is part of Qt release (which is compiled with MinGW) and Creator is part of the "Qt Creator" release which is built with msvc. Glued together this gives "Qt SDK".