QT error

[AABAN34]

  I have QT 2.3.0 loaded, but when I compile my program , it's saying ...

   checking for QT .. configure: error QT ( >=QT 2.2.1) (Libraries) not
found Please check your installation.

What is it telling me to do?  I did a set command and saw that QTDIR was
pointed to another dir called 2.2.0 so I did this, QTDIR=/user/doc/qt-2.3.0
and it still fails when I complie it.