What is my compatibility issue here?

I get a compiler error when trying to create a project with a .ui file I created in designer.

the error is "This file was generated using the moc from 4.6.4 lt"
"cannot be used with the include files from this version of QT"
"The moc has changed too much"

My software versions are as follows:
RHEL 6.7
QT 4.8.4
Qt Creator 3.0.1 GCC 4.4.7
QT Designer 4.6.2
QWT 6.1.3

Any help would be appreciated.

EMP

Hi, there seem to be two versions of Qt (4.6.4 and 4.8.4), and they are mixed up during the build process. The moc is taken from Qt 4.6.4, and compilation seems to use another Qt.

Ginsengelf