Build errors in Qt

hi,

I using Qt 4.5 and Qt creater 1.0.. trying to run my first Qt program.
but getting error "No valid Qt version set. set one in Tools/Options"
when I started building my project.

I have added a new Qt version in Tools/Options/Qt4 as C:\MyPrograms\Qt\2009.01\bin
but still its showing the same error.

could anyone tell me how to fix this.

-thanks

set it to the root directory of your Qt installation. /bin is not needed.

Thanks for your reply.

I changed that path to root folder.
Still getting the same error.


here is the compile output from Qt Creater

Running build steps for project QtWorld...
Creating gdb macros library...
No valid Qt version set. Set one in Tools/Options
Error while building project QtWorld
When executing build step 'QMake'
Canceled build.

help me to fix this