When something goes wrong check the following things:
\list
\o Is the device run configuration selected as the active run configuration?
\o Did you build your application with one of the special Qt versions created for the
S60 SDKs?
\o Are the settings for the Qt version you use to build your project correct? Check the
path to the S60 SDK, and if you need to specify the path to your compiler tool chain.
\o Is the emulator/device run configuration selected as the active run configuration?
\o Did you build using the right toolchain, i. e. WINSCW for running in the Emulator,
GCCE or RVCT for running on the device?
\o If the emulator process could not be started, try closing Creator and starting the
application directly from your file manager. Having done this, Creator should be
able to run your projects in the Emulator.
\o Is the device connected via USB in \e{PC Suite} mode?
\o Is App TRK running on the device, using the USB connection, and does it have status
\e{connected}?
\o Is your device detected and selected in the run configuration details?
\o Are the settings for the Qt version you use to build your project correct? Check the path to the S60 SDK, and if you need to specify the path to your compiler tool chain.
\endlist
If neither of this helps to solve your problem, search the qt-creator@trolltech.com