Qt project using multiple source directories

[DJG]

Hi
I have a Qt project which is split into sub-directories, eg. .h files in ./inc, .cpp file ./src, etc. I have altered the .pro file to reflect this tree structure and can load the project into QCreator using this same .pro file. The sub-sirectory tree structure is reflected correctly. I can build the project successfully for Symbian device no problem. However when I build for the simulator I get the following errors:

The process "c:/nokiaqtsdk/simulator/qt/mingw/bin/qmake.exe" exited normally.
Starting: "C:/NokiaQtSDK/mingw/bin/mingw32-make.exe" -w
mingw32-make: Entering directory `C:/Projects/Barrow/xxxx-build-simulator'

C:/NokiaQtSDK/mingw/bin/mingw32-make -f Makefile.Debug

mingw32-make[1]: Entering directory `C:/Projects/Barrow/xxxx-build-simulator'

c:\NokiaQtSDK\Simulator\Qt\mingw\bin\uic.exe ..\forms\homescreenbutton.ui -o ui_homescreenbutton.h

c:\NokiaQtSDK\Simulator\Qt\mingw\bin\uic.exe ..\forms\homescreen.ui -o ui_homescreen.h

c:\NokiaQtSDK\Simulator\Qt\mingw\bin\uic.exe ..\forms\helpscreen.ui -o ui_helpscreen.h

c:\NokiaQtSDK\Simulator\Qt\mingw\bin\uic.exe ..\forms\accountscreen.ui -o ui_accountscreen.h

g++ -c -g -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_GUI_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"..\..\..\NokiaQtSDK\Simulator\Qt\mingw\include\QtCore" -I"..\..\..\NokiaQtSDK\Simulator\Qt\mingw\include\QtGui" -I"..\..\..\NokiaQtSDK\Simulator\Qt\mingw\include" -I"c:\NokiaQtSDK\Simulator\Qt\mingw\include\QtMobilitySimulator" -I"..\..\..\NokiaQtSDK\Simulator\QtMobility\mingw\include" -I"..\..\..\NokiaQtSDK\Simulator\Qt\mingw\include\ActiveQt" -I"debug" -I"." -I"..\build" -I"." -I"..\..\..\NokiaQtSDK\Simulator\Qt\mingw\mkspecs\win32-g++" -o debug\homescreenbutton.o ..\src\homescreenbutton.cpp

mingw32-make[1]: Leaving directory `C:/Projects/Barrow/xxxx-build-simulator'

mingw32-make: Leaving directory `C:/Projects/Barrow/xxxx-build-simulator'

..\src\homescreenbutton.cpp:1:30: error: homescreenbutton.h: No such file or directory

I have tried looking for suggestions on the Wikki, net etc. with no resolution. Can anyone help me solve the issue please?

[DJG]

Solved - thanks
INCLUDE variable added to project file