xconfig kernel compile problems
When I type make xconfig in the kenel source folder, I get the following message:
make: `scripts/fixdep' is up to date.
* Unable to find the QT installation. Please make sure that the
* QT development package is correctly installed and the QTDIR
* environment variable is set to the correct location.
make: *** [scripts/kconfig/.tmp_qtcheck] Error 1
make: *** [xconfig] Error 2
What's the problem and how do I fix it?