[news.eclipse.newcomer] Plug-in install error

[Patrick Godeau <antispam@xxxxxxxxxxxxxx>]

Hello,

I have an error when I try to install a plug-in on my Eclipse 3.4.1.
I tried with different plug-ins, the same error happens:

An error occurred while collecting items to be installed
  No repository found containing:
org.eclipse.datatools.enablement.ibm.db2.iseries/osgi.bundle/1.0.0.v200805152355
  No repository found containing:
org.eclipse.datatools.enablement.ibm.db2.iseries.dbdefinition/osgi.bundle/1.0.0.v200806100223
  No repository found containing:
org.eclipse.datatools.enablement.ibm.db2.luw/osgi.bundle/1.0.0.v200805152355
  No repository found containing:
org.eclipse.datatools.enablement.ibm.db2.luw.dbdefinition/osgi.bundle/1.0.0.v200805152355
  No repository found containing:
org.eclipse.datatools.enablement.ibm.db2.zseries/osgi.bundle/1.0.0.v200805152355
  No repository found containing:
org.eclipse.datatools.enablement.ibm.db2.zseries.dbdefinition/osgi.bundle/1.0.0.v200805152355
  No repository found containing:
org.eclipse.datatools.enablement.ibm.feature/org.eclipse.update.feature/1.6.1.v200809191145-7D43EB7sQS9RbiYgHAa
  No repository found containing:
org.eclipse.datatools.enablement.ibm.informix.dbdefinition/osgi.bundle/1.0.1.v200807170829
  No repository found containing:
org.eclipse.datatools.enablement.msft.feature/org.eclipse.update.feature/1.6.1.v200809191145-442_kE77c7VBQDFNW
  No repository found containing:
org.eclipse.datatools.enablement.mysql/osgi.bundle/1.0.1.v200808261158
  No repository found containing:
org.eclipse.datatools.enablement.mysql.dbdefinition/osgi.bundle/1.0.1.v200805170742
  No repository found containing:
org.eclipse.datatools.enablement.mysql.feature/org.eclipse.update.feature/1.6.1.v200809191145-442_kE77c7TBTBKPQ

What is the problem please?

-- 
Patrick