error when installing into Eclipse

General
1

Hi, being new to Vaadin I’m trying first steps and following the
online tutorial :

I’m running into an error:

Cannot complete the install because one or more required items could not be found.
Software being installed: Vaadin Plug-in for Eclipse 3.0.0 (com.vaadin.integration.eclipse.feature.group 3.0.0)
Missing requirement: Vaadin Plug-in for Eclipse 3.0.0 (com.vaadin.integration.eclipse.feature.group 3.0.0) requires 'org.eclipse.wst.common.project.facet.ui 0.0.0' but it could not be found

Any clues what might be wrong?
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2

It’s highly recommended to use Eclipse IDE for Java EE Developers. What Eclipse version and package do you have?