dependecy broken: eclipse-rcp : Depends: libswt-gtk-3-java (>= 3.7.1-2)

My eclipse today was removed on quantal update packages. So I try to install again, and it fails with:

$ sudo apt-get install eclipse-rcp
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 eclipse-rcp : Depends: libswt-gtk-3-java (>= 3.7.1-2) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

$ dpkg -l libswt-gtk-3-java | grep libswt-gtk-3-java
ii libswt-gtk-3-java 3.8.0~rc2-3 Standard Widget Toolkit for GTK+ Java library

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: eclipse-rcp (not installed)
ProcVersionSignature: Ubuntu 3.5.0-1.1-generic 3.5.0-rc3
Uname: Linux 3.5.0-1-generic i686
ApportVersion: 2.2.5-0ubuntu1
Architecture: i386
Date: Fri Jun 22 04:39:27 2012
InstallationMedia:

ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
SourcePackage: eclipse
UpgradeStatus: Upgraded to quantal on 2012-06-05 (16 days ago)