package qt3-dev-tools-embedded (not installed) failed to install/upgrade: trying to overwrite '/usr/bin/qvfb', which is also in package qt4-dev-tools 4:4.7.2-0ubuntu6.3

[unre]

trying to install qt-creator + libraries, etc.

in terminal:
$ sudo apt-get install qt4-*
$ sudo apt-get install qt3-*

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: qt3-dev-tools-embedded (not installed)
ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Fri Sep 23 23:34:10 2011
ErrorMessage: trying to overwrite '/usr/bin/qvfb', which is also in package qt4-dev-tools 4:4.7.2-0ubuntu6.3
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
SourcePackage: qt-x11-free
Title: package qt3-dev-tools-embedded (not installed) failed to install/upgrade: trying to overwrite '/usr/bin/qvfb', which is also in package qt4-dev-tools 4:4.7.2-0ubuntu6.3
UpgradeStatus: No upgrade log present (probably fresh install)